Image shown is representative and may differ from the actual product in size, proportions, and color shade
52.000 in
(1320.80 mm)
58.810 in
(1493.77 mm)
52
1.250 in
(31.75 mm)
56.560 in
(1436.62 mm)
1/2"
NBR Parker N0300-90 Full Face Gasket, Size: 150#-52"B-FF-1/2"
Material: NBR Parker N0300-90 Full Face Gasket
Size: 150#-52"B-FF-1/2" Full Face Gasket
Part Number: N0300-90-150#-52"B-FF-1/2"
Color: Black
Detailed Description
N0300-90-150#-52"B-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) N0300-90 is manufactured with the following features & specifications: General Purpose Material. N0300-90-150#-52"B-FF-1/2" is size 150#-52"B-FF-1/2" Full Face Gasket also referred to as 52 B (Pipe Size) x 1320.8mm (ID) x 1493.77mm (OD) x 52 (Bolt Qty) x 31.75mm (Bolt Dia.) x 1436.62mm (Bolt Circle) x 1/2" (Thickness). N0300-90-150#-52"B-FF-1/2" is a size 52 B, 150#-FF ASME Ring Gasket. Material: 90 Durometer NBR Parker N0300-90 Full Face Gasket Size: 150#-52"B-FF-1/2", 52 B Pipe Size X 1320.8mm ID X 1493.77mm OD X 52 Bolt Qty X 31.750mm Bolt Dia. X 1436.620mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | N0300-90 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 90 Shore A Hardness |
| High Temperature | 82 °C / 180 °F |
| Low Temperature | -40 °C / -40 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-52"B-FF-1/2" |
| Pipe Size | 52 B |
| ID | 1320.80 mm / 52.000 in |
| OD | 1493.77 mm / 58.810 in |
| Bolt Qty | 52 |
| Bolt Dia. | 31.75 mm / 1.250 in |
| Bolt Circle | 1436.62 mm / 56.560 in |
| Thickness | 1/2" |
Parker’s N0300-90 is a 90 Shore A black nitrile rubber (NBR) compound engineered for high-hardness sealing applications such as back-up rings where extrusion resistance and dimensional stability are critical. Designed to meet ASTM D2000 7BG915 requirements, this material performs reliably across a service temperature range of -40°F to 180°F while maintaining strong resistance to petroleum-based oils. It is also compatible with water up to 212°F, salt and alkali solutions, and weak acids, supporting use in hydraulic and industrial fluid systems. The high durometer formulation helps prevent seal extrusion in high-pressure environments when used in conjunction with O-rings.
N0300-90 is commonly used for back-up rings and support components in hydraulic cylinders, valves, and pressure-containing assemblies where standard elastomers may deform under load. It is not recommended for aromatic fuels, strong acids, glycols, ozone exposure, or polar solvents. This compound provides a dependable balance of hardness, oil resistance, and specification compliance for pressure-intensive sealing designs. Canyon Components offers equivalent high-durometer NBR materials designed to match the performance characteristics of Parker N0300-90 for back-up ring and extrusion-resistant sealing applications.
Common relevant keywords:
NBR back-up rings, 90 Shore A nitrile rubber, extrusion resistant elastomer, high durometer NBR seals, hydraulic back-up ring material, oil resistant nitrile gaskets, ASTM D2000 nitrile compound, pressure sealing support rings, industrial hydraulic sealing components, Parker N0300-90 equivalent, Datasheet, TDS, Test Report, MTR, MSDS, SDS, Parker N0300-90 O-rings, Parker N300-90 nitrile seals, Parker N0300 gasket material, Parker N300 Buna-N O-rings, Parker N0300 backup ring gasket, Parker N0300 NBR compound
