Image shown is representative and may differ from the actual product in size, proportions, and color shade
10.750 in
(273.05 mm)
16.000 in
(406.40 mm)
12
1.000 in
(25.40 mm)
14.250 in
(361.95 mm)
1/2"
NBR Parker N1444-90 Full Face Gasket, Size: 150#-10"-FF-1/2"
Material: NBR Parker N1444-90 Full Face Gasket
Size: 150#-10"-FF-1/2" Full Face Gasket
Part Number: N1444-90-150#-10"-FF-1/2"
Color: Black
Detailed Description
N1444-90-150#-10"-FF-1/2" is a Black, 90 Shore A, NBR (Nitrile, Buna-N) Full Face Gasket made from Parker Seal® (Parker). It is a 90 durometer NBR (Nitrile, Buna-N). [Parker Seal® (Parker) N1444-90 is manufactured with the following features & specifications: General Purpose Material. N1444-90-150#-10"-FF-1/2" is a size 10, 150#-FF ASME Full Face Gasket. Material: 90 Durometer NBR Parker N1444-90 Full Face Gasket Size: 150#-10"-FF-1/2", 10 Pipe Size X 273.05mm ID X 406.4mm OD X 12 Bolt Qty X 25.400mm Bolt Dia. X 361.950mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | N1444-90 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 90 Shore A Hardness |
| High Temperature | 121 °C / 250 °F |
| Low Temperature | -34 °C / -29 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-10"-FF-1/2" |
| Pipe Size | 10 |
| ID | 273.05 mm / 10.750 in |
| OD | 406.40 mm / 16.000 in |
| Bolt Qty | 12 |
| Bolt Dia. | 25.40 mm / 1.000 in |
| Bolt Circle | 361.95 mm / 14.250 in |
| Thickness | 1/2" |
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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