Parker AS568 O-Rings Size Chart

Parker O-Rings Size Chart for AS-568A Aerospace Orings

What O-Ring Size Do I Need?

Reference the Parker o-rings size chart to help determine the size for your application. The chart provides dimensions, both nominal and metric, for standard (AN) shrinkage materials ONLY. These correspond to AS568A dimensions.

000 SERIES

Parker Series 2-0XX O-Ring Sizes:

Parker Size	AS 568A Size	ID (nominal in.)	OD (nominal in.)	W (nominal in.)	ID (actual in.)	±	W (actual in.)	±	Basic Volume (Cu. in.)	ID (actual mm.)	±	W (actual mm.)	±
2-001	-001	1/32	3/32	1/32	.029	.004	.040	.003	.0003	0,74	0,10	1,02	0,08
2-002	-002	3/64	9/64	3/64	.042	.004	.050	.003	.0006	1,07	0,10	1,27	0,08
2-003	-003	1/16	3/16	1/16	.056	.004	.060	.003	.0010	1,42	0,10	1,52	0,08
2-004	-004	5/64	13/64	1/16	.070	.005	.070	.003	.0017	1,78	0,13	1,78	0,08
2-005	-005	3/32	7/32	1/16	.101	.005	.070	.003	.0021	2,57	0,13	1,78	0,08
2-006	-006	1/8	1/4	1/32	.114	.005	.070	.003	.0022	2,90	0,13	1,78	0,08
2-007	-007	5/32	9/32	3/64	.145	.005	.070	.003	.0026	3,68	0,13	1,78	0,08
2-008	-008	3/16	5/16	1/16	.176	.005	.070	.003	.0030	4,47	0,13	1,78	0,08
2-009	-009	7/32	11/32	1/16	.208	.005	.070	.003	.0034	5,28	0,13	1,78	0,08
2-010	-010	1/4	3/8	1/16	.239	.005	.070	.003	.0037	6,07	0,13	1,78	0,08
2-011	-011	5/16	7/16	1/16	.301	.005	.070	.003	.0045	7,65	0,13	1,78	0,08
2-012	-012	3/8	1/2	1/16	.364	.005	.070	.003	.0052	9,25	0,13	1,78	0,08
2-013	-013	7/16	9/16	1/16	.426	.005	.070	.003	.0060	10,82	0,13	1,78	0,08
2-014	-014	1/2	5/8	1/16	.489	.005	.070	.003	.0068	12,42	0,13	1,78	0,08
2-015	-015	9/16	11/16	1/16	.551	.007	.070	.003	.0075	14,00	0,18	1,78	0,08
2-016	-016	5/8	3/4	1/16	.614	.009	.070	.003	.0083	15,60	0,23	1,78	0,08
2-017	-017	11/16	13/16	1/16	.676	.009	.070	.003	.0090	17,17	0,23	1,78	0,08
2-018	-018	3/4	7/8	1/16	.739	.009	.070	.003	.0098	18,77	0,23	1,78	0,08
2-019	-019	13/16	15/16	1/16	.801	.009	.070	.003	.0105	20,35	0,23	1,78	0,08
2-020	-020	7/8	1	1/16	.864	.009	.070	.003	.0113	21,95	0,23	1,78	0,08
2-021	-021	15/16	1 1/16	1/16	.926	.009	.070	.003	.0120	23,52	0,23	1,78	0,08
2-022	-022	1	1/8	1/16	.989	.010	.070	.003	.0128	25,12	0,25	1,78	0,08
2-023	-023	1 1/16	1 3/16	1/16	1.051	.010	.070	.003	.0136	26,70	0,25	1,78	0,08
2-024	-024	1 1/8	1 1/4	1/16	1.114	.010	.070	.003	.0143	28,30	0,25	1,78	0,08
2-025	-025	1 3/16	1 5/16	1/16	1.176	.011	.070	.003	.0151	29,87	0,28	1,78	0,08
2-026	-026	1 1/4	1 3/8	1/16	1.239	.011	.070	.003	.0158	31,47	0,28	1,78	0,08
2-027	-027	1 5/16	1 7/16	1/16	1.301	.011	.070	.003	.0166	33,05	0,28	1,78	0,08
2-028	-028	1 3/8	1 1/2	1/16	1.364	.013	.070	.003	.0173	34,65	0,33	1,78	0,08
2-029	-029	1 1/2	1 5/8	1/16	1.489	.013	.070	.003	.0188	37,82	0,33	1,78	0,08
2-030	-030	1 5/8	1 3/4	1/16	1.614	.013	.070	.003	.0204	41,00	0,33	1,78	0,08
2-031	-031	1 3/4	1 7/8	1/16	1.739	.015	.070	.003	.0219	44,17	0,38	1,78	0,08
2-032	-032	1 7/8	2	1/16	1.864	.015	.070	.003	.0234	47,35	0,38	1,78	0,08
2-033	-033	2	2 1/8	1/16	1.989	.018	.070	.003	.0249	50,52	0,46	1,78	0,08
2-034	-034	2 1/8	2 1/4	1/16	2.114	.018	.070	.003	.0264	53,7	0,46	1,78	0,08
2-035	-035	2 1/4	2 3/8	1/16	2.239	.018	.070	.003	.0279	56,87	0,46	1,78	0,08
2-036	-036	2 3/8	2 1/2	1/16	2.364	.018	.070	.003	.0294	60,05	0,46	1,78	0,08
2-037	-037	2 1/2	2 5/8	1/16	2.489	.018	.070	.003	.0309	63,22	0,46	1,78	0,08
2-038	-038	2 5/8	2 3/4	1/16	2.614	.020	.070	.003	.0324	66,40	0,51	1,78	0,08
2-039	-039	2 3/4	2 7/8	1/16	2.739	.020	.070	.003	.0340	69,57	0,51	1,78	0,08
2-040	-040	2 7/8	3	1/16	2.864	.020	.070	.003	.0355	72,75	0,51	1,78	0,08
2-041	-041	3	3 1/8	1/16	2.989	.024	.070	.003	.0370	75,92	0,61	1,78	0,08
2-042	-042	3 1/4	3 3/8	1/16	3.239	.024	.070	.003	.0400	82,27	0,61	1,78	0,08
2-043	-043	3 1/2	3 5/8	1/16	3.489	.024	.070	.003	.0430	88,62	0,61	1,78	0,08
2-044	-044	3 3/4	3 7/8	1/16	3.739	.027	.070	.003	.0460	94,97	0,69	1,78	0,08
2-045	-045	4	4 1/8	1/16	3.989	.027	.070	.003	.0491	101,32	0,69	1,78	0,08
2-046	-046	4 1/4	4 3/8	1/16	4.239	.030	.070	.003	.0521	107,67	0,76	1,78	0,08
2-047	-047	4 1/2	4 5/8	1/16	4.489	.030	.070	.003	.0551	114,02	0,76	1,78	0,08
2-048	-048	4 3/4	4 7/8	1/16	4.739	.030	.070	.003	.0581	120,37	0,76	1,78	0,08
2-049	-049	5	5 1/8	1/16	4.989	.037	.070	.003	.0612	126,72	0,94	1,78	0,08
2-050	-050	5 1/4	5 3/8	1/16	5.239	.037	.070	.003	.0642	133,07	0,94	1,78	0,08

Parker Series 2-1XX O-Ring Sizes:

Parker Size	AS 568A Size	ID (nominal in.)	OD (nominal in.)	W (nominal in.)	ID (actual in.)	±	W (actual in.)	±	Basic Volume (Cu. in.)	ID (actual mm.)	±	W (actual mm.)	±
2-102	-102	1/16	1/4	3/32	.049	.005	.103	.003	.0040	1,24	0,13	2,62	0,08
2-103	-103	3/32	9/32	3/32	.081	.005	.103	.003	.0048	2,06	0,13	2,62	0,08
2-104	-104	1/8	5/16	3/32	.112	.005	.103	.003	.0056	2,84	0,13	2,62	0,08
2-105	-105	5/32	11/32	3/32	.143	.005	.103	.003	.0064	3,63	0,13	2,62	0,08
2-106	-106	3/16	3/8	3/32	.174	.005	.103	.003	.0072	4,42	0,13	2,62	0,08
2-107	-107	7/32	13/32	3/32	.206	.005	.103	.003	.0081	5,23	0,13	2,62	0,08
2-108	-108	1/4	7/16	3/32	.237	.005	.103	.003	.0089	6,02	0,13	2,62	0,08
2-109	-109	5/16	1/2	3/32	.299	.005	.103	.003	.0105	7,59	0,13	2,62	0,08
2-110	-110	3/8	9/16	3/32	.362	.005	.103	.003	.0122	9,19	0,13	2,62	0,08
2-111	-111	7/16	5/8	3/32	.424	.005	.103	.003	.0138	10,77	0,13	2,62	0,08
2-112	-112	1/2	11/16	3/32	.487	.005	.103	.003	.0154	12,37	0,13	2,62	0,08
2-113	-113	9/16	3/4	3/32	.549	.007	.103	.003	.0171	13,94	0,18	2,62	0,08
2-114	-114	5/8	13/16	3/32	.612	.009	.103	.003	.0187	15,54	0,23	2,62	0,08
2-115	-115	11/16	7/8	3/32	.674	.009	.103	.003	.0203	17,12	0,23	2,62	0,08
2-116	-116	3/4	15/16	3/32	.737	.009	.103	.003	.0220	18,72	0,23	2,62	0,08
2-117	-117	13/16	1	3/32	.799	.010	.103	.003	.0236	20,29	0,25	2,62	0,08
2-118	-118	7/8	1 1/16	3/32	.862	.010	.103	.003	.0253	21,89	0,25	2,62	0,08
2-119	-119	15/16	1 1/8	3/32	.924	.010	.103	.003	.0269	23,47	0,25	2,62	0,08
2-120	-120	1	1 3/16	3/32	.987	.010	.103	.003	.0285	25,07	0,25	2,62	0,08
2-121	-121	1 1/16	1 1/4	3/32	1.049	.010	.103	.003	.0302	26,64	0,25	2,62	0,08
2-122	-122	1 1/8	1 5/16	3/32	1.112	.010	.103	.003	.0318	28,24	0,25	2,62	0,08
2-123	-123	1 3/16	1 3/8	3/32	1.174	.012	.103	.003	.0334	29,82	0,3	2,62	0,08
2-124	-124	1 1/4	1 7/16	3/32	1.237	.012	.103	.003	.0351	31,42	0,3	2,62	0,08
2-125	-125	1 5/16	1 1/2	3/32	1.299	.012	.103	.003	.0367	32,99	0,3	2,62	0,08
2-126	-126	1 3/8	1 9/16	3/32	1.362	.012	.103	.003	.0383	34,59	0,3	2,62	0,08
2-127	-127	1 7/16	1 5/8	3/32	1.424	.012	.103	.003	.0400	36,17	0,3	2,62	0,08
2-128	-128	1 1/2	1 11/16	3/32	1.487	.012	.103	.003	.0416	37,77	0,3	2,62	0,08
2-129	-129	1 9/16	1 3/4	3/32	1.549	.015	.103	.003	.0432	39,34	0,38	2,62	0,08
2-130	-130	1 5/8	1 13/16	3/32	1.612	.015	.103	.003	.0449	40,94	0,38	2,62	0,08
2-131	-131	1 11/16	1 7/8	3/32	1.674	.015	.103	.003	.0465	42,52	0,38	2,62	0,08
2-132	-132	1 3/4	1 15/16	3/32	1.737	.015	.103	.003	.0482	44,12	0,38	2,62	0,08
2-133	-133	1 13/16	2	3/32	1.799	.015	.103	.003	.0498	45,69	0,38	2,62	0,08
2-134	-134	1 7/8	2 1/16	3/32	1.862	.015	.103	.003	.0514	47,29	0,38	2,62	0,08
2-135	-135	1 15/16	2 1/8	3/32	1.925	.017	.103	.003	.0531	48,9	0,43	2,62	0,08
2-136	-136	2	2 3/16	3/32	1.987	.017	.103	.003	.0547	50,47	0,43	2,62	0,08
2-137	-137	2 1/16	2 1/4	3/32	2.050	.017	.103	.003	.0564	52,07	0,43	2,62	0,08
2-138	-138	2 1/8	2 5/16	3/32	2.112	.017	.103	.003	.0580	53,64	0,43	2,62	0,08
2-139	-139	2 3/16	2 3/8	3/32	2.175	.017	.103	.003	.0596	55,25	0,43	2,62	0,08
2-140	-140	2 1/4	2 7/16	3/32	2.237	.017	.103	.003	.0612	56,82	0,43	2,62	0,08
2-141	-141	2 5/16	2 1/2	3/32	2.300	.020	.103	.003	.0629	58,42	0,51	2,62	0,08
2-142	-142	2 3/8	2 9/16	3/32	2.362	.020	.103	.003	.0645	59,99	0,51	2,62	0,08
2-143	-143	2 7/16	2 5/8	3/32	2.425	.020	.103	.003	.0662	61,6	0,51	2,62	0,08
2-144	-144	2 1/2	2 11/16	3/32	2.487	.020	.103	.003	.0678	63,17	0,51	2,62	0,08
2-145	-145	2 9/16	2 3/4	3/32	2.550	.020	.103	.003	.0694	64,77	0,51	2,62	0,08
2-146	-146	2 5/8	2 13/16	3/32	2.612	.020	.103	.003	.0711	66,34	0,51	2,62	0,08
2-147	-147	2 11/16	2 7/8	3/32	2.675	.022	.103	.003	.0727	67,95	0,56	2,62	0,08
2-148	-148	2 3/4	2 15/16	3/32	2.737	.022	.103	.003	.0743	69,52	0,56	2,62	0,08
2-149	-149	2 13/16	3	3/32	2.800	.022	.103	.003	.0760	71,12	0,56	2,62	0,08
2-150	-150	2 7/8	3 1/16	3/32	2.862	.022	.103	.003	.0776	72,69	0,56	2,62	0,08
2-151	-151	3	3 3/16	3/32	2.987	.024	.103	.003	.0809	75,87	0,61	2,62	0,08
2-152	-152	3 1/4	3 7/16	3/32	3.237	.024	.103	.003	.0874	82,22	0,61	2,62	0,08
2-153	-153	3 1/2	3 11/16	3/32	3.487	.024	.103	.003	.0940	88,57	0,61	2,62	0,08
2-154	-154	3 3/4	3 15/16	3/32	3.737	.028	.103	.003	.1005	94,92	0,71	2,62	0,08
2-155	-155	4	4 3/16	3/32	3.987	.028	.103	.003	.1071	101,27	0,71	2,62	0,08
2-156	-156	4 1/4	4 7/16	3/32	4.237	.030	.103	.003	.1136	107,62	0,76	2,62	0,08
2-157	-157	4 1/2	4 11/16	3/32	4.487	.030	.103	.003	.1202	113,97	0,76	2,62	0,08
2-158	-158	4 3/4	4 15/16	3/32	4.737	.030	.103	.003	.1267	120,32	0,76	2,62	0,08
2-159	-159	5	5 3/16	3/32	4.987	.035	.103	.003	.1332	126,67	0,89	2,62	0,08
2-160	-160	5 1/4	5 7/16	3/32	5.237	.035	.103	.003	.1398	133,02	0,89	2,62	0,08
2-161	-161	5 1/2	5 11/16	3/32	5.487	.035	.103	.003	.1463	139,37	0,89	2,62	0,08
2-162	-162	5 3/4	5 15/16	3/32	5.737	.035	.103	.003	.1529	145,72	0,89	2,62	0,08
2-163	-163	6	6 3/16	3/32	5.987	.035	.103	.003	.1594	152,07	0,89	2,62	0,08
2-164	-164	6 1/4	6 7/16	3/32	6.237	.040	.103	.003	.1660	158,42	1,02	2,62	0,08
2-165	-165	6 1/2	6 11/16	3/32	6.487	.040	.103	.003	.1725	164,77	1,02	2,62	0,08
2-166	-166	6 3/4	6 15/16	3/32	6.737	.040	.103	.003	.1790	171,12	1,02	2,62	0,08
2-167	-167	7	7 3/16	3/32	6.987	.040	.103	.003	.1856	177,47	1,02	2,62	0,08
2-168	-168	7 1/4	7 7/16	3/32	7.237	.045	.103	.003	.1921	183,82	1,14	2,62	0,08
2-169	-169	7 1/2	7 11/16	3/32	7.487	.045	.103	.003	.1987	190,17	1,14	2,62	0,08
2-170	-170	7 3/4	7 15/16	3/32	7.737	.045	.103	.003	.2052	196,52	1,14	2,62	0,08
2-171	-171	8	8 3/16	3/32	7.987	.045	.103	.003	.2118	202,87	1,14	2,62	0,08
2-172	-172	8 1/4	8 7/16	3/32	8.237	.050	.103	.003	.2183	209,22	1,27	2,62	0,08
2-173	-173	8 1/2	8 11/16	3/32	8.487	.050	.103	.003	.2249	215,57	1,27	2,62	0,08
2-174	-174	8 3/4	8 15/16	3/32	8.737	.050	.103	.003	.2314	221,92	1,27	2,62	0,08
2-175	-175	9	9 3/16	3/32	8.987	.050	.103	.003	.2379	228,27	1,27	2,62	0,08
2-176	-176	9 1/4	9 7/16	3/32	9.237	.055	.103	.003	.2445	234,62	1,4	2,62	0,08
2-177	-177	9 1/2	9 11/16	3/32	9.487	.055	.103	.003	.2510	240,97	1,4	2,62	0,08
2-178	-178	9 3/4	9 15/16	3/32	9.737	.055	.103	.003	.2576	247,32	1,4	2,62	0,08

Parker Series 2-2XX O-Ring Sizes:

Parker Size	AS 568A Size	ID (nominal in.)	OD (nominal in.)	W (nominal in.)	ID (actual in.)	±	W (actual in.)	±	Basic Volume (Cu. in.)	ID (actual mm.)	±	W (actual mm.)	±
2-201	-201	3/16	7/16	1/8	.171	.055	.139	.004	.0148	4,34	0,13	3,53	0,10
2-202	-202	1/4	1/2	1/8	.234	.005	.139	.004	.0178	5,94	0,13	3,53	0,10
2-203	-203	5/16	9/16	1/8	.296	.005	.139	.004	.0207	7,52	0,13	3,53	0,10
2-204	-204	3/8	5/8	1/8	.359	.005	.139	.004	.0237	9,12	0,13	3,53	0,10
2-205	-205	7/16	11/16	1/8	.421	.005	.139	.004	.0267	10,69	0,13	3,53	0,10
2-206	-206	1/2	3/4	1/8	.484	.005	.139	.004	.0297	12,29	0,13	3,53	0,10
2-207	-207	9/16	13/16	1/8	.546	.007	.139	.004	.0327	13,87	0,18	3,53	0,10
2-208	-208	5/8	7/8	1/8	.609	.009	.139	.004	.0357	15,47	0,23	3,53	0,10
2-209	-209	11/16	15/16	1/8	.671	.010	.139	.004	.0386	17,04	0,25	3,53	0,10
2-210	-210	3/4	1	1/8	.734	.010	.139	.004	.0416	18,64	0,25	3,53	0,10
2-211	-211	13/16	1 1/16	1/8	.796	.010	.139	.004	.0446	20,22	0,25	3,53	0,10
2-212	-212	7/8	1 1/8	1/8	.859	.010	.139	.004	.0476	21,82	0,25	3,53	0,10
2-213	-213	15/16	1 3/16	1/8	.921	.010	.139	.004	.0505	23,39	0,25	3,53	0,10
2-214	-214	1	1 1/4	1/8	.984	.010	.139	.004	.0535	24,99	0,25	3,53	0,10
2-215	-215	1 1/16	1 5/16	1/8	1.046	.010	.139	.004	.0565	26,57	0,25	3,53	0,10
2-216	-216	1 1/8	1 3/8	1/8	1.109	.012	.139	.004	.0595	28,17	0,3	3,53	0,10
2-217	-217	1 3/16	1 7/16	1/8	1.171	.012	.139	.004	.0624	29,74	0,3	3,53	0,10
2-218	-218	1 1/4	1 1/2	1/8	1.234	.012	.139	.004	.0654	31,34	0,3	3,53	0,10
2-219	-219	1 5/16	1 9/16	1/8	1.296	.012	.139	.004	.0684	32,92	0,3	3,53	0,10
2-220	-220	1 3/8	1 5/8	1/8	1.359	.012	.139	.004	.0714	34,52	0,3	3,53	0,10
2-221	-221	1 7/16	1 11/16	1/8	1.421	.012	.139	.004	.0744	36,09	0,3	3,53	0,10
2-222	-222	1 1/2	1 3/4	1/8	1.484	.015	.139	.004	.0774	37,69	0,38	3,53	0,10
2-223	-223	1 5/8	1 7/8	1/8	1.609	.015	.139	.004	.0833	40,87	0,38	3,53	0,10
2-224	-224	1 3/4	2	1/8	1.734	.015	.139	.004	.0893	44,04	0,38	3,53	0,10
2-225	-225	1 7/8	2 1/8	1/8	1.859	.018	.139	.004	.0952	47,22	0,46	3,53	0,10
2-226	-226	2	2 1/4	1/8	1.984	.018	.139	.004	.1012	50,39	0,46	3,53	0,10
2-227	-227	2 1/16	2 3/8	1/8	2.109	.018	.139	.004	.1072	53,57	0,46	3,53	0,10
2-228	-228	2 1/4	2 1/2	1/8	2.234	.020	.139	.004	.1131	56,74	0,51	3,53	0,10
2-229	-229	2 3/8	2 5/8	1/8	2.359	.020	.139	.004	.1191	59,92	0,51	3,53	0,10
2-230	-230	2 1/2	2 3/4	1/8	2.484	.020	.139	.004	.1250	63,09	0,51	3,53	0,10
2-231	-231	2 5/8	2 7/8	1/8	2.609	.020	.139	.004	.1310	66,27	0,51	3,53	0,10
2-232	-232	2 3/4	3	1/8	2.734	.024	.139	.004	.1370	69,44	0,61	3,53	0,10
2-233	-233	2 7/8	3 1/8	1/8	2.859	.024	.139	.004	.1429	72,62	0,61	3,53	0,10
2-234	-234	3	3 1/4	1/8	2.984	.024	.139	.004	.1489	75,79	0,61	3,53	0,10
2-235	-235	3 1/8	3 3/8	1/8	3.109	.024	.139	.004	.1548	78,97	0,61	3,53	0,10
2-236	-236	3 1/4	3 1/2	1/8	3.234	.024	.139	.004	.1608	82,14	0,61	3,53	0,10
2-237	-237	3 3/8	3 5/8	1/8	3.359	.024	.139	.004	.1668	85,32	0,61	3,53	0,10
2-238	-238	3 1/2	3 3/4	1/8	3.484	.024	.139	.004	.1727	88,49	0,61	3,53	0,10
2-239	-239	3 5/8	3 7/8	1/8	3.609	.028	.139	.004	.1787	91,67	0,71	3,53	0,10
2-240	-240	3 3/4	4	1/8	3.734	.028	.139	.004	.1846	94,84	0,71	3,53	0,10
2-241	-241	3 7/8	4 1/8	1/8	3.859	.028	.139	.004	.1906	98,02	0,71	3,53	0,10
2-242	-242	4	4 1/4	1/8	3.984	.028	.139	.004	.1966	101,19	0,71	3,53	0,10
2-243	-243	1 1/8	1 3/8	1/8	4.109	.028	.139	.004	.2025	104,37	0,71	3,53	0,10
2-244	-244	4 1/4	4 1/2	1/8	4.234	.030	.139	.004	.2085	107,54	0,76	3,53	0,10
2-245	-245	4 3/8	4 5/8	1/8	4.359	.030	.139	.004	.2144	110,72	0,76	3,53	0,10
2-246	-246	4 1/2	4 3/4	1/8	4.484	.030	.139	.004	.2204	113,89	0,76	3,53	0,10
2-247	-247	4 5/8	4 7/8	1/8	4.609	.030	.139	.004	.2264	117,07	0,76	3,53	0,10
2-248	-248	4 3/4	5	1/8	4.734	.030	.139	.004	.2323	120,24	0,76	3,53	0,10
2-249	-249	4 7/8	5 1/8	1/8	4.859	.035	.139	.004	.2383	123,42	0,89	3,53	0,10
2-250	-250	5	5 1/4	1/8	4.984	.035	.139	.004	.2442	126,59	0,89	3,53	0,10
2-251	-251	5 1/8	5 3/8	1/8	5.109	.035	.139	.004	.2502	129,77	0,89	3,53	0,10
2-252	-252	5 1/4	5 1/2	1/8	5.234	.035	.139	.004	.2561	132,94	0,89	3,53	0,10
2-253	-253	5 3/8	5 5/8	1/8	5.359	.035	.139	.004	.2621	136,12	0,89	3,53	0,10
2-254	-254	5 1/2	5 3/4	1/8	5.484	.035	.139	.004	.2681	139,29	0,89	3,53	0,10
2-255	-255	5 5/8	5 7/8	1/8	5.609	.035	.139	.004	.2740	142,47	0,89	3,53	0,10
2-256	-256	5 3/4	6	1/8	5.734	.035	.139	.004	.2800	145,64	0,89	3,53	0,10
2-257	-257	5 7/8	6 1/8	1/8	5.859	.035	.139	.004	.2859	148,82	0,89	3,53	0,10
2-258	-258	6	6 1/4	1/8	5.984	.035	.139	.004	.2919	151,99	0,89	3,53	0,10
2-259	-259	6 1/4	6 1/2	1/8	6.234	.040	.139	.004	.3038	158,34	1,02	3,53	0,10
2-260	-260	6 1/2	6 3/4	1/8	6.484	.040	.139	.004	.3157	164,69	1,02	3,53	0,10
2-261	-261	6 3/4	7	1/8	6.734	.040	.139	.004	.3277	171,04	1,02	3,53	0,10
2-262	-262	7	7 1/4	1/8	6.984	.040	.139	.004	.3396	177,39	1,02	3,53	0,10
2-263	-263	7 1/4	7 1/2	1/8	7.234	.045	.139	.004	.3515	183,74	1,14	3,53	0,10
2-264	-264	7 1/2	7 3/4	1/8	7.484	.045	.139	.004	.3634	190,09	1,14	3,53	0,10
2-265	-265	7 3/4	8	1/8	7.734	.045	.139	.004	.3753	196,44	1,14	3,53	0,10
2-266	-266	8	8 1/4	1/8	7.984	.045	.139	.004	.3872	202,79	1,14	3,53	0,10
2-267	-267	8 1/4	8 1/2	1/8	8.234	.050	.139	.004	.3992	209,14	1,27	3,53	0,10
2-268	-268	8 1/2	8 3/4	1/8	8.484	.050	.139	.004	.4111	215,49	1,27	3,53	0,10
2-269	-269	8 3/4	9	1/8	8.734	.050	.139	.004	.4230	221,84	1,27	3,53	0,10
2-270	-270	9	9 1/4	1/8	8.984	.050	.139	.004	.4349	228,19	1,27	3,53	0,10
2-271	-271	9 1/4	9 1/2	1/8	9.234	.055	.139	.004	.4468	234,54	1,4	3,53	0,10
2-272	-272	9 1/2	9 3/4	1/8	9.484	.055	.139	.004	.4588	240,89	1,4	3,53	0,10
2-273	-273	9 3/4	10	1/8	9.734	.055	.139	.004	.4707	247,24	1,4	3,53	0,10
2-274	-274	10	10 1/4	1/8	9.984	.055	.139	.004	.4826	253,59	1,4	3,53	0,10
2-275	-275	10 1/2	10 3/4	1/8	10.484	.055	.139	.004	.5064	266,29	1,4	3,53	0,10
2-276	-276	11	11 1/4	1/8	10.984	.065	.139	.004	.5303	278,99	1,65	3,53	0,10
2-277	-277	11 1/2	11 3/4	1/8	11.484	.065	.139	.004	.5541	291,69	1,65	3,53	0,10
2-278	-278	12	12 1/4	1/8	11.984	.065	.139	.004	.5779	304,39	1,65	3,53	0,10
2-279	-279	13	13 1/4	1/8	12.984	.065	.139	.004	.6256	329,79	1,65	3,53	0,10
2-280	-280	14	14 1/4	1/8	13.984	.065	.139	.004	.6733	355,19	1,65	3,53	0,10
2-281	-281	15	15 1/4	1/8	14.984	.065	.139	.004	.7210	380,59	1,65	3,53	0,10
2-282	-282	16	16 1/4	1/8	15.955	.075	.139	.004	.7672	405,26	1,91	3,53	0,10
2-283	-283	17	17 1/4	1/8	16.955	.080	.139	.004	.8149	430,66	2,03	3,53	0,10
2-284	-284	18	18 1/4	1/8	17.955	.085	.139	.004	.8626	456,06	2,16	3,53	0,10

Parker Series 2-3XX O-Ring Sizes:

Parker Size	AS 568A Size	ID (nominal in.)	OD (nominal in.)	W (nominal in.)	ID (actual in.)	±	W (actual in.)	±	Basic Volume (Cu. in.)	ID (actual mm.)	±	W (actual mm.)	±
2-309	-309	7/16	13/16	3/16	.412	.005	.210	.005	.0677	10,46	0,13	5,33	0,13
2-310	-310	1/2	7/8	3/16	.475	.005	.210	.005	.0745	12,07	0,13	5,33	0,13
2-311	-311	9/16	15/16	3/16	.537	.007	.210	.005	.0813	13,64	0,18	5,33	0,13
2-312	-312	5/8	1	3/16	.600	.009	.210	.005	.0881	15,24	0,23	5,33	0,13
2-313	-313	11/16	1 1/16	3/16	.662	.009	.210	.005	.0949	16,81	0,23	5,33	0,13
2-314	-314	3/4	1 1/8	3/16	.725	.010	.210	.005	.1017	18,42	0,25	5,33	0,13
2-315	-315	13/16	1 3/16	3/16	.787	.010	.210	.005	.1085	19,99	0,25	5,33	0,13
2-316	-316	7/8	1 1/4	3/16	.850	.010	.210	.005	.1153	21,59	0,25	5,33	0,13
2-317	-317	15/16	1 5/16	3/16	.912	.010	.210	.005	.1221	23,16	0,25	5,33	0,13
2-318	-318	1	1 3/8	3/16	.975	.010	.210	.005	.1289	24,77	0,25	5,33	0,13
2-319	-319	1 1/16	1 7/16	3/16	1.037	.010	.210	.005	.1357	26,34	0,25	5,33	0,13
2-320	-320	1 1/8	1 1/2	3/16	1.100	.012	.210	.005	.1425	27,94	0,3	5,33	0,13
2-321	-321	1 3/16	1 9/16	3/16	1.162	.012	.210	.005	.1493	29,51	0,3	5,33	0,13
2-322	-322	1 1/4	1 5/8	3/16	1.225	.012	.210	.005	.1561	31,12	0,3	5,33	0,13
2-323	-323	1 5/16	1 11/16	3/16	1.287	.012	.210	.005	.1629	32,69	0,3	5,33	0,13
2-324	-324	1 3/8	1 3/4	3/16	1.350	.012	.210	.005	.1697	34,29	0,3	5,33	0,13
2-325	-325	1 1/2	1 7/8	3/16	1.475	.015	.210	.005	.1833	37,47	0,38	5,33	0,13
2-326	-326	1 5/8	2	3/16	1.600	.015	.210	.005	.1970	40,64	0,38	5,33	0,13
2-327	-327	1 3/4	2 1/8	3/16	1.725	.015	.210	.005	.2106	43,82	0,38	5,33	0,13
2-328	-328	1 7/8	2 1/4	3/16	1.850	.015	.210	.005	.2242	46,99	0,38	5,33	0,13
2-329	-329	2	2 3/8	3/16	1.975	.018	.210	.005	.2378	50,17	0,46	5,33	0,13
2-330	-330	2 1/8	2 1/2	3/16	2.100	.018	.210	.005	.2514	53,34	0,46	5,33	0,13
2-331	-331	2 1/4	2 5/8	3/16	2.225	.018	.210	.005	.2650	56,52	0,46	5,33	0,13
2-332	-332	2 3/8	2 3/4	3/16	2.350	.018	.210	.005	.2786	59,69	0,46	5,33	0,13
2-333	-333	2 1/2	2 7/8	3/16	2.475	.210	.210	.005	.2922	62,87	5,33	5,33	0,13
2-334	-334	2 5/8	3	3/16	2.600	.210	.210	.005	.3058	66,04	5,33	5,33	0,13
2-335	-335	2 3/4	3 1/8	3/16	2.725	.210	.210	.005	.3194	69,22	5,33	5,33	0,13
2-336	-336	2 7/8	3 1/4	3/16	2.850	.210	.210	.005	.3330	72,39	5,33	5,33	0,13
2-337	-337	3	3 3/8	3/16	2.975	.210	.210	.005	.3466	75,57	5,33	5,33	0,13
2-338	-338	3 1/8	3 1/2	3/16	3.100	.024	.210	.005	.3602	78,74	0,61	5,33	0,13
2-339	-339	3 1/4	3 5/8	3/16	3.225	.024	.210	.005	.3738	81,92	0,61	5,33	0,13
2-340	-340	3 3/8	3 3/4	3/16	3.35	.024	.210	.005	.3874	85,09	0,61	5,33	0,13
2-341	-341	3 1/2	3 7/8	3/16	3.475	.024	.210	.005	.4010	88,27	0,61	5,33	0,13
2-342	-342	3 5/8	4	3/16	3.600	.028	.210	.005	.4146	91,44	0,71	5,33	0,13
2-343	-343	3 3/4	4 1/8	3/16	3.725	.028	.210	.005	.4282	94,62	0,71	5,33	0,13
2-344	-344	3 7/8	4 1/4	3/16	3.850	.028	.210	.005	.4418	97,79	0,71	5,33	0,13
2-345	-345	4	4 3/8	3/16	3.975	.028	.210	.005	.4554	100,97	0,71	5,33	0,13
2-346	-346	4 1/8	4 1/2	3/16	4.100	.028	.210	.005	.4690	104,14	0,71	5,33	0,13
2-347	-347	4 1/4	4 5/8	3/16	4.225	.030	.210	.005	.4826	107,32	0,76	5,33	0,13
2-348	-348	4 3/8	4 3/4	3/16	4.350	.030	.210	.005	.4962	110,49	0,76	5,33	0,13
2-349	-349	4 1/2	4 7/8	3/16	4.475	.030	.210	.005	.5098	113,67	0,76	5,33	0,13
2-350	-350	4 5/8	5	3/16	4.600	.030	.210	.005	.5234	116,84	0,76	5,33	0,13
2-351	-351	4 3/4	5 1/8	3/16	4.725	.030	.210	.005	.5370	120,02	0,76	5,33	0,13
2-352	-352	4 7/8	5 1/4	3/16	4.850	.030	.210	.005	.5506	123,19	0,76	5,33	0,13
2-353	-353	5	5 3/8	3/16	4.975	.037	.210	.005	.5642	126,37	0,94	5,33	0,13
2-354	-354	5 1/8	5 1/2	3/16	5.100	.037	.210	.005	.5778	129,54	0,94	5,33	0,13
2-355	-355	5 1/4	5 5/8	3/16	5.225	.037	.210	.005	.5914	132,72	0,94	5,33	0,13
2-356	-356	5 3/8	5 3/4	3/16	5.350	.037	.210	.005	.6050	135,89	0,94	5,33	0,13
2-357	-357	5 1/2	5 7/8	3/16	5.475	.037	.210	.005	.6186	139,07	0,94	5,33	0,13
2-358	-358	5 5/8	6	3/16	5.600	.037	.210	.005	.6322	142,24	0,94	5,33	0,13
2-359	-359	5 3/4	6 1/8	3/16	5.725	.037	.210	.005	.6458	145,42	0,94	5,33	0,13
2-360	-360	5 7/8	6 1/4	3/16	5.850	.037	.210	.005	.6594	148,59	0,94	5,33	0,13
2-361	-361	6	6 3/8	3/16	5.975	.037	.210	.005	.6730	151,77	0,94	5,33	0,13
2-362	-362	6 1/4	6 5/8	3/16	6.225	.040	.210	.005	.7002	158,12	1,02	5,33	0,13
2-363	-363	6 1/2	6 7/8	3/16	6.475	.040	.210	.005	.7274	164,47	1,02	5,33	0,13
2-364	-364	6 3/4	7 1/8	3/16	6.725	.040	.210	.005	.7546	170,82	1,02	5,33	0,13
2-365	-365	7	7 3/8	3/16	6.975	.040	.210	.005	.7818	177,17	1,02	5,33	0,13
2-366	-366	7 1/4	7 5/8	3/16	7.225	.045	.210	.005	.8090	183,52	1,14	5,33	0,13
2-367	-367	7 1/2	7 7/8	3/16	7.475	.045	.210	.005	.8362	189,87	1,14	5,33	0,13
2-368	-368	7 3/4	8 1/8	3/16	7.725	.045	.210	.005	.8634	196,22	1,14	5,33	0,13
2-369	-369	8	8 3/8	3/16	7.975	.045	.210	.005	.8906	202,57	1,14	5,33	0,13
2-370	-370	8 1/4	8 5/8	3/16	8.225	.050	.210	.005	.9178	208,92	1,27	5,33	0,13
2-371	-371	8 1/2	8 7/8	3/16	8.475	.050	.210	.005	.9450	215,27	1,27	5,33	0,13
2-372	-372	8 3/4	9 1/8	3/16	8.725	.050	.210	.005	.9722	221,62	1,27	5,33	0,13
2-373	-373	9	9 3/8	3/16	8.975	.050	.210	.005	.9994	227,97	1,27	5,33	0,13
2-374	-374	9 1/4	9 5/8	3/16	9.225	.055	.210	.005	1.0266	234,32	1,4	5,33	0,13
2-375	-375	9 1/2	9 7/8	3/16	9.475	.055	.210	.005	1.0538	240,67	1,4	5,33	0,13
2-376	-376	9 3/4	10 1/8	3/16	9.725	.055	.210	.005	1.0810	247,02	1,4	5,33	0,13
2-377	-377	10	10 3/8	3/16	9.975	.055	.210	.005	1.1083	253,37	1,4	5,33	0,13
2-378	-378	10 1/2	10 7/8	3/16	10.475	.060	.210	.005	1.1627	266,07	1,52	5,33	0,13
2-379	-379	11	11 3/8	3/16	10.975	.060	.210	.005	1.2171	278,77	1,52	5,33	0,13
2-380	-380	11 1/2	11 7/8	3/16	11.475	.065	.210	.005	1.2715	291,47	1,65	5,33	0,13
2-381	-381	12	12 3/8	3/16	11.975	.065	.210	.005	1.3259	304,17	1,65	5,33	0,13
2-382	-382	13	13 3/8	3/16	12.975	.065	.210	.005	1.4347	329,57	1,65	5,33	0,13
2-383	-383	14	14 3/8	3/16	13.975	.070	.210	.005	1.5435	354,97	1,78	5,33	0,13
2-384	-384	15	15 3/8	3/16	14.975	.070	.210	.005	1.6523	380,37	1,78	5,33	0,13
2-385	-385	16	16 3/8	3/16	15.955	.075	.210	.005	1.7590	405,26	1,91	5,33	0,13
2-386	-386	17	17 3/8	3/16	16.955	.080	.210	.005	1.8678	430,66	2,03	5,33	0,13
2-387	-387	18	18 3/8	3/16	17.955	.085	.210	.005	1.9766	456,06	2,16	5,33	0,13
2-388	-388	19	19 3/8	3/16	18.955	.090	.210	.005	2.0854	481,46	2,29	5,33	0,13
2-389	-389	20	20 3/8	3/16	19.955	.095	.210	.005	2.1942	506,86	2,41	5,33	0,13
2-390	-390	21	21 3/8	3/16	20.955	.095	.210	.005	2.3030	532,26	2,41	5,33	0,13
2-391	-391	22	22 3/8	3/16	21.955	.100	.210	.005	2.4118	557,66	2,54	5,33	0,13
2-392	-392	23	23 3/8	3/16	22.940	.105	.210	.005	2.5190	582,68	2,67	5,33	0,13
2-393	-393	24	24 3/8	3/16	23.940	.110	.210	.005	2.6278	608,08	2,79	5,33	0,13
2-394	-394	25	25 3/8	3/16	24.940	.115	.210	.005	2.7366	633,48	2,92	5,33	0,13
2-395	-395	26	26 3/8	3/16	25.940	.120	.210	.005	2.8454	658,88	3,05	5,33	0,13

Parker Series 2-4XX O-Ring Sizes:

Parker Size	AS 568A Size	ID (nominal in.)	OD (nominal in.)	W (nominal in.)	ID (actual in.)	±	W (actual in.)	±	Basic Volume (Cu. in.)	ID (actual mm.)	±	W (actual mm.)	±
2-425	-425	4 1/2	5	1/4	4.475	.033	.275	.006	.8863	113,67	0,84	6,99	0,15
2-426	-426	4 5/8	5 1/8	1/4	4.600	.033	.275	.006	.9097	116,84	0,84	6,99	0,15
2-427	-427	4 3/4	5 1/4	1/4	4.725	.033	.275	.006	.9330	120,02	0,84	6,99	0,15
2-428	-428	4 7/8	5 3/8	1/4	4.85	.033	.275	.006	.9563	123,19	0,84	6,99	0,15
2-429	-429	5	5 1/8	1/4	4.975	.037	.275	.006	.9796	126,37	0,94	6,99	0,15
2-430	-430	5 1/8	5 5/8	1/4	5.100	.037	.275	.006	1.0030	129,54	0,94	6,99	0,15
2-431	-431	5 1/4	5 3/4	1/4	5.225	.037	.275	.006	1.0263	132,72	0,94	6,99	0,15
2-432	-432	5 3/8	5 7/8	1/4	5.350	.037	.275	.006	1.0496	135,89	0,94	6,99	0,15
2-433	-433	5 1/2	6	1/4	5.475	.037	.275	.006	1.0729	139,07	0,94	6,99	0,15
2-434	-434	5 5/8	6 1/8	1/4	5.600	.037	.275	.006	1.0963	142,24	0,94	6,99	0,15
2-435	-435	5 3/4	6 1/4	1/4	5.725	.037	.275	.006	1.1196	145,42	0,94	6,99	0,15
2-436	-436	5 7/8	6 3/8	1/4	5.850	.037	.275	.006	1.1429	148,59	0,94	6,99	0,15
2-437	-437	6	6 1/2	1/4	5.975	.037	.275	.006	1.1662	151,77	0,94	6,99	0,15
2-438	-438	6 1/4	6 3/4	1/4	6.225	.040	.275	.006	1.2129	158,12	1,02	6,99	0,15
2-439	-439	6 1/2	7	1/4	6.475	.040	.275	.006	1.2595	164,47	1,02	6,99	0,15
2-440	-440	6 3/4	7 1/4	1/4	6.725	.040	.275	.006	1.3062	170,82	1,02	6,99	0,15
2-441	-441	7	7 1/2	1/4	6.975	.040	.275	.006	1.3528	177,17	1,02	6,99	0,15
2-442	-442	7 1/4	7 3/4	1/4	7.225	.045	.275	.006	1.3995	183,52	1,14	6,99	0,15
2-443	-443	7 1/2	8	1/4	7.475	.045	.275	.006	1.4461	189,87	1,14	6,99	0,15
2-444	-444	7 3/4	8 1/4	1/4	7.725	.045	.275	.006	1.4928	196,22	1,14	6,99	0,15
2-445	-445	8	8 1/2	1/4	7.975	.045	.275	.006	1.5394	202,57	1,14	6,99	0,15
2-446	-446	8 1/2	9	1/4	8.475	.055	.275	.006	1.6327	215,27	1,4	6,99	0,15
2-447	-447	9	9 1/2	1/4	8.975	.055	.275	.006	1.7260	227,97	1,4	6,99	0,15
2-448	-448	9 1/2	10	1/4	9.475	.055	.275	.006	1.8193	240,67	1,4	6,99	0,15
2-449	-449	10	10 1/2	1/4	9.975	.055	.275	.006	1.9126	253,37	1,4	6,99	0,15
2-450	-450	10 1/2	11	1/4	10.475	.060	.275	.006	2.0059	266,07	1,52	6,99	0,15
2-451	-451	11	11 1/2	1/4	10.975	.060	.275	.006	2.0992	278,77	1,52	6,99	0,15
2-452	-452	11 1/2	12	1/4	11.475	.060	.275	.006	2.1925	291,47	1,52	6,99	0,15
2-453	-453	12	12 1/2	1/4	11.975	.060	.275	.006	2.2858	304,17	1,52	6,99	0,15
2-454	-454	12 1/2	13	1/4	12.475	.060	.275	.006	2.3791	316,87	1,52	6,99	0,15
2-455	-455	13	13 1/2	1/4	12.975	.060	.275	.006	2.4724	329,57	1,52	6,99	0,15
2-456	-456	13 1/2	14	1/4	13.475	.070	.275	.006	2.5657	342,27	1,78	6,99	0,15
2-457	-457	14	14 1/2	1/4	13.975	.070	.275	.006	2.6590	354,97	1,78	6,99	0,15
2-458	-458	14 1/2	15	1/4	14.475	.070	.275	.006	2.7523	367,67	1,78	6,99	0,15
2-459	-459	15	15 1/2	1/4	14.975	.070	.275	.006	2.8456	380,37	1,78	6,99	0,15
2-460	-460	15 1/2	16	1/4	15.475	.070	.275	.006	2.9389	393,07	1,78	6,99	0,15
2-461	-461	16	16 1/2	1/4	15.955	.075	.275	.006	3.0285	405,26	1,91	6,99	0,15
2-462	-462	16 1/2	17	1/4	16.455	.075	.275	.006	3.1218	417,96	1,91	6,99	0,15
2-463	-463	17	17 1/2	1/4	16.955	.080	.275	.006	3.2151	430,66	2,03	6,99	0,15
2-464	-464	17 1/2	18	1/4	17.455	.085	.275	.006	3.3084	443,36	2,16	6,99	0,15
2-465	-465	18	18 1/2	1/4	17.955	.085	.275	.006	3.4017	456,06	2,16	6,99	0,15
2-466	-466	18 1/2	19	1/4	18.455	.085	.275	.006	3.4950	468,76	2,16	6,99	0,15
2-467	-467	19	19 1/2	1/4	18.955	.090	.275	.006	3.5883	481,46	2,29	6,99	0,15
2-468	-468	19 1/2	20	1/4	19.455	.090	.275	.006	3.6816	494,16	2,29	6,99	0,15
2-469	-469	20	20 1/2	1/4	19.955	.095	.275	.006	3.7749	506,86	2,41	6,99	0,15
2-470	-470	21	21 1/2	1/4	20.955	.095	.275	.006	3.9615	532,26	2,41	6,99	0,15
2-471	-471	22	22 1/2	1/4	21.955	.100	.275	.006	4.1481	557,66	2,54	6,99	0,15
2-472	-472	23	23 1/2	1/4	22.940	.105	.275	.006	4.3319	582,68	2,67	6,99	0,15
2-473	-473	24	24 1/2	1/4	23.940	.110	.275	.006	4.5185	608,08	2,79	6,99	0,15
2-474	-474	25	26 1/2	1/4	24.940	.115	.275	.006	4.7051	633,48	2,92	6,99	0,15
2-475	-475	26	25 1/2	1/4	25.940	.120	.275	.006	4.8917	658,88	3,05	6,99	0,15

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Parker AS568 O-Rings Size Chart

Parker O-Rings Size Chart for AS-568A Aerospace Orings

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