Image shown is representative and may differ from the actual product in size, proportions, and color shade
2.380 in
(60.45 mm)
6.000 in
(152.40 mm)
4
0.750 in
(19.05 mm)
4.750 in
(120.65 mm)
1/2"
NBR Parker N1444-90 Full Face Gasket, Size: 150#-2"-FF-1/2"
Material: NBR Parker N1444-90 Full Face Gasket
Size: 150#-2"-FF-1/2" Full Face Gasket
Part Number: N1444-90-150#-2"-FF-1/2"
Color: Black
Detailed Description
N1444-90-150#-2"-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#-2"-FF-1/2" is a size 2, 150#-FF ASME Full Face Gasket. Material: 90 Durometer NBR Parker N1444-90 Full Face Gasket Size: 150#-2"-FF-1/2", 2 Pipe Size X 60.45mm ID X 152.4mm OD X 4 Bolt Qty X 19.050mm Bolt Dia. X 120.650mm 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#-2"-FF-1/2" |
| Pipe Size | 2 |
| ID | 60.45 mm / 2.380 in |
| OD | 152.40 mm / 6.000 in |
| Bolt Qty | 4 |
| Bolt Dia. | 19.05 mm / 0.750 in |
| Bolt Circle | 120.65 mm / 4.750 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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