NBR Parker N1444-90 O-Ring, Size: -006
Material: NBR Parker N1444-90 O-Ring
Size: AS568 -006 O-Ring
Part Number: N1444-90-OR-006
Parker Seal® (Parker)
N1444-90
NBR (Nitrile, Buna-N)
90
Shore A
General Purpose Material
Color: Black
Detailed Description
N1444-90-OR-006 is a Black, 90 Shore A, NBR (Nitrile, Buna-N) O-Ring made from Parker Seal® (Parker). Parker Seal® (Parker) N1444-90 is manufactured with the following features & specifications: General Purpose Material. N1444-90-OR-006 is AS568 size -006 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 2.9mm (Inside Diameter (ID)).
Material: NBR Parker N1444-90 O-Ring
Size: AS568 -006, 1.78mm CS X 2.9mm ID (0.070" CS X 0.114" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | N1444-90 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 90 Shore A |
| High Temperature | 121 °C / 250 °F |
| Low Temperature | -34 °C / -29 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -006 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 2.90 mm / 0.114 in |
Parker’s N1444-90 is a 90 Shore A black nitrile rubber (NBR) compound specifically intended for use as Parbak style back-up rings where high hardness and extrusion resistance are required. Qualified to ASTM D2000 M3CH910, it delivers stable performance across a service temperature range of -30°F to 250°F while maintaining dimensional integrity under pressure. This compound is compatible with petroleum-based oils, water up to 212°F, salt and alkali solutions, and weak acids, making it suitable for hydraulic and industrial fluid systems that rely on back-up rings to support primary O-ring seals. Its high durometer formulation is optimized for load-bearing support rather than primary dynamic sealing.
N1444-90 is commonly used exclusively as Parbak or back-up ring material in hydraulic cylinders, valves, pumps, and pressure-containing assemblies where extrusion control is critical. It is not recommended for aromatic fuels, strong acids, glycols, ozone exposure, or polar solvents. This compound provides a reliable, specification-backed solution for preventing O-ring extrusion in high-pressure applications. Canyon Components offers equivalent high-durometer NBR back-up ring materials designed to match the hardness, temperature capability, and performance profile of Parker N1444-90.
Common relevant keywords:
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