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N1444-90-OR-002
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CS

0.050 in

(1.27 mm)

ID

0.042 in

(1.07 mm)

ORing cut reference

See Data Sheet


NBR Parker N1444-90 O-Ring, Size: -002

Material: NBR Parker N1444-90 O-Ring

Size: AS568 -002 O-Ring

Part Number: N1444-90-OR-002

Parker Seal® (Parker)

N1444-90

NBR (Nitrile, Buna-N)

90

Shore A

General Purpose Material

Color: Black

Detailed Description

N1444-90-OR-002 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-002 is AS568 size -002 O-Ring also referred to as 1.27mm (Cross Sectional Diameter (CS)) x 1.07mm (Inside Diameter (ID)).


Material: NBR Parker N1444-90 O-Ring


Size: AS568 -002, 1.27mm CS X 1.07mm ID (0.050" CS X 0.042" ID)

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Technical SpecificationValue
Compound NumberN1444-90
BrandParker Seal® (Parker)
MaterialNBR (Nitrile, Buna-N)
ColorBlack
Durometer90 Shore A
High Temperature121 °C / 250 °F
Low Temperature-34 °C / -29 °F
Geometry Specifications
Cross Sectional GeometryO-Ring
Size StandardAS568
Size-002
Cross Section (CS)1.27 mm / 0.050 in
Inside Diameter (ID)1.07 mm / 0.042 in
ORing cut reference
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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:
NBR back-up rings, Parbak back-up ring material, 90 Shore A nitrile rubber, extrusion resistant elastomer rings, hydraulic back-up ring material, high pressure sealing support rings, nitrile Parbak equivalents, oil resistant back-up rings, ASTM D2000 nitrile compound, Parker N1444-90 equivalent, Datasheet, TDS, Test Report, MTR, MSDS, SDS