Nitrile (NBR) O-Rings

Temperature Range:

-30°F (-34°C) to 250°F (121°C)

Hardness (Shore A) Range:

40 to 90

Also Known As:

Buna-N, Breon, Butakon®, Chemigum®, Hycar®

Designation:

NBR

Class:

BF, BG, BK, CH

Shelf Life:

15 Years

Description:

Nitrile is the combination of butadiene and acrylonitrile. Butadiene provides elasticity and low-temperature flexibility, resistance to heat, chemicals, and oxidation. Acrylonitrile provides hardness, tensile strength and creates resistance to abrasion, fuel, and oil. A standard general-purpose nitrile compound usually contains 34% ACN (Acrylonitrile).

Advantages:

Excellent tensile strength, abrasion, tear and compression resistance. It is used in water and steam applications (below 212°F), petroleum oils and fuels, silicone oils and greases, propane, ethylene glycol, butane, vegetable, mineral oils and greases, and dilute acids.

Disadvantages:

Low resistance to ozone, sunlight, and weathering. Incompatible with benzene, toluene, xylene, halogen derivatives (carbon tetrachloride, trichloroethylene), ketones (MEK, acetone), phosphate ester hydraulic fluids (Skydrol, Pydraul), strong acids and glycol.

Parker Nitrile (NBR) Compounds
Compound #: Recommended For: Temperature Range: Color:
GENERAL PURPOSE
N0545-40 AMS 3201 -45°F to 225°F Black
NA192-50 General Purpose, Non-Blooming -45°F to 250°F Black
N0525-60 AMS 3212, AMS 3220 -25°F to 250°F Black
N1219-60 NSF 51, FDA -30°F to 225°F Black
N0287-70 Synthetic Lubricant Resistant, AMS 7272 -35°F to 250°F Black
N0674-70 General Purpose MIL-G-21569, Cl I, UL listed -30°F to 250°F Black
N0757-70 NSF 61, UL Listed -30°F to 225°F Black
N1069-70 FDA -30°F to 180°F Black
N1220-70 NSF 51, FDA -30°F to 225°F Black
N1470-70 General Purpose, X-rings -40°F to 225°F Black
N1471-70 General Purpose -40°F to 250°F Black
N1499-70 General Purpose, UL -30°F to 250°F Black
N1510-70 NSF 61 -30°F to 225°F Black
N1517-70 NSF 61 -30°F to 225°F Black
N1527-70 UL Listed -30°F to 225°F Black
N0508-75 FDA, USDA -30°F to 180°F Black
NA155-80 (7538) Abrasion Resistant -25°F to 250°F Black
N0300-90 Back Up Rings -40°F to 180°F Black
N0552-90 General Purpose -30°F to 250°F Black
N1444-90 Parbaks only -30°F to 250°F Black
N1490-90 General Purpose -30°F to 250°F Black
LOW SET
N0299-50 UL listed -55°F to 225°F Black
NL151-50 Internally Lubed -55°F to 225°F Black
N0406-60 Low Temperature -55°F to 225°F Black
NM506-65 AMS 7271 -70°F to 180°F Black
N0103-70 Low Temperature -55°F to 225°F Black
N0602-70 AMS-P-5315, Low Temperature -70°F to 180°F Black
NM072-70 AMS-R-7362 -60°F to 180°F Black
NM304-75 MIL-DTL-25732 -66°F to 225/250°F Black
N0756-75 AMS-P-83461, Low Comp. Set, CNG Applications -65°F to 250/275°F Black
N0507-90 AMS-P-5510 Low Temperature, CNG Applications -65°F to 180°F Black
HIGH ACN/LOW SWELL
N0497-70 Low Swell, SAE 1120R1 CL2, UL Listed -35°F to 212°F Black
N1500-75 Low Swell, Fuel Applications, UL Listed -35°F to 212°F Black
IMPROVED DYNAMIC PROPERTIES
NL151-50 Internally Lubed -55°F to 225°F Black
NW163-70 Internally Lubed -30°F to 225°F Black
N0818-70 Internally Lubed -30°F to 250°F Black
N0750-80 Carboxylated (good wear resistance) -25°F to 250°F Black
N1090-85 Carboxylated (good wear resistance), Internally Lubed -25°F to 225°F Black