NBR Parker N0287-70 O-Ring, Size: -019
Material: NBR Parker N0287-70 O-Ring
Size: AS568 -019 O-Ring
Part Number: N0287-70-OR-019
Parker Seal® (Parker)
N0287-70
NBR (Nitrile, Buna-N)
70
Shore A
Synthetic Lubricant Resistant, AMS 7272
Color: Black
Detailed Description
N0287-70-OR-019 is a Black, 70 Shore A, NBR (Nitrile, Buna-N) O-Ring made from Parker Seal® (Parker). Parker Seal® (Parker) N0287-70 is manufactured with the following features & specifications: Synthetic Lubricant Resistant, AMS 7272. N0287-70-OR-019 is AS568 size -019 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 20.35mm (Inside Diameter (ID)).
Material: NBR Parker N0287-70 O-Ring
Size: AS568 -019, 1.78mm CS X 20.35mm ID (0.070" CS X 0.801" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | N0287-70 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 70 Shore A |
| High Temperature | 121 °C / 250 °F |
| Low Temperature | -37 °C / -35 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -019 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 20.35 mm / 0.801 in |
| Other Specifications | |
Synthetic Lubricant Resistant, AMS 7272 | |
Parker’s N0287-70 is a 70 Shore A black nitrile rubber (NBR) compound engineered for sealing applications that require resistance to synthetic lubricants and stable performance across moderate temperature ranges. Qualified to AMS 7272E, this material operates reliably from approximately -35°F to 250°F while maintaining good compression set resistance and mechanical integrity. It offers compatibility with petroleum-based oils, water up to 212°F, salt and alkali solutions, and weak acids, making it suitable for aerospace, industrial, and hydraulic applications where lubricant exposure is common. The formulation is designed to provide consistent sealing performance in static and moderate dynamic environments.
N0287-70 is commonly used for O-rings and gaskets in systems exposed to synthetic and petroleum lubricants, hydraulic fluids, and general industrial media. It is not recommended for highly aromatic fuels, strong acids, glycols, ozone exposure, or polar solvents. This AMS-qualified nitrile compound is selected when lubricant resistance and specification compliance are key design requirements. Canyon Components offers equivalent NBR materials designed to match the temperature capability, lubricant resistance, and AMS 7272 performance profile of Parker N0287-70.
Common relevant keywords:
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