Parker Hydrogenated Nitrile (HNBR) O-Rings Material Description:
Hydrogenated nitrile is a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR). Superior mechanical characteristics, particularly high strength, helps reduce extrusion and wear.
Parker O-Ring Distributor
For over 50 years, Engineered Seal Products has partnered with Parker Seals. ESP is proud to be one of the FEW Premier Distributors to qualify as a "Parker Seal Technology Center (STC)".
What does Parker STC mean?
- Proven Engineering Capability
- Expert Material & Technical Support
- ISO Quality Approval
- Strong Financial Track Record
- Aliphatic hydrocarbons.
- Vegetable and animal fats and oils.
- HFA, HFB and HFC hydraulic fluids.
- Dilute acids, bases and salt solutions at moderate temperatures.
- Water and steam up to 149°C (300°F).
- Ozone, aging and weathering.
- Chlorinated hydrocarbons.
- Polar solvents (ketones, esters and ethers).
- Strong acids
Parker Hydrogenated Nitrile (HNBR) O-Ring Compound Numbering System::
Parker has one type of nomenclature used to reference Hydrogenated Nitrile (HNBR) products.
| K |
| Polymer Code (Single Letter) |
| A |
| Special Property Description (Single Letter) |
| 158 |
| Sequence Number (Three Letters) |
| -70 |
| Durometer Indicator (Two Digits) |
Special Property Descriptions:
E
Ethylene Acrylate or (Vamac®)
F
Fuel Resistant or Fully Fluorinated
G
Higher Fluorine Content
P
Low Temperature Flexible
| ASTM D1418 Abbreviation |
| HNBR |
| ESP Recommended Shelf Life |
| 15 Years |
| Hardness (Shore A) Range |
| 50 - 95 |
Temperature ranges will apply to the majority of media for which the material is potentially recommended. With some media however, the service temperature range may be significantly different. ALWAYS TEST UNDER ACUTAL SERVICE CONDITIONS.
ESP’s shelf life recommendation is based on the AS5316 standard and intended to be utilized by those organizations who do not already have specific recommendations for the control of elastomeric seals. It should be noted that the packaging of the elastomeric seals prior to assembly into a product is an integral part of the controlled storage procedure. It provides a positive means of product identity from the time of manufacture to the time of assembly.