Image shown is representative and may differ from the actual product in size, proportions, and color shade
46.000 in
(1168.40 mm)
52.810 in
(1341.37 mm)
40
1.250 in
(31.75 mm)
50.560 in
(1284.22 mm)
1/4"
NBR Parker N0545-40 Full Face Gasket, Size: 150#-46"B-FF-1/4"
Material: NBR Parker N0545-40 Full Face Gasket
Size: 150#-46"B-FF-1/4" Full Face Gasket
Part Number: N0545-40-150#-46"B-FF-1/4"
Color: Black
Detailed Description
N0545-40-150#-46"B-FF-1/4" is a Black, 40 Shore A, NBR (Nitrile, Buna-N) Full Face Gasket made from Parker Seal® (Parker). It is a 40 durometer NBR (Nitrile, Buna-N). N0545-40-150#-46"B-FF-1/4" is size 150#-46"B-FF-1/4" Full Face Gasket also referred to as 46 B (Pipe Size) x 1168.4mm (ID) x 1341.37mm (OD) x 40 (Bolt Qty) x 31.75mm (Bolt Dia.) x 1284.22mm (Bolt Circle) x 1/4" (Thickness). N0545-40-150#-46"B-FF-1/4" is a size 46 B, 150#-FF ASME Ring Gasket. Material: 40 Durometer NBR Parker N0545-40 Full Face Gasket Size: 150#-46"B-FF-1/4", 46 B Pipe Size X 1168.4mm ID X 1341.37mm OD X 40 Bolt Qty X 31.750mm Bolt Dia. X 1284.220mm Bolt Circle X 1/4" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | N0545-40 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 40 Shore A Hardness |
| High Temperature | 107 °C / 225 °F |
| Low Temperature | -43 °C / -45 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-46"B-FF-1/4" |
| Pipe Size | 46 B |
| ID | 1168.40 mm / 46.000 in |
| OD | 1341.37 mm / 52.810 in |
| Bolt Qty | 40 |
| Bolt Dia. | 31.75 mm / 1.250 in |
| Bolt Circle | 1284.22 mm / 50.560 in |
| Thickness | 1/4" |
Parker’s N0545-40 is a 40 Shore A black nitrile rubber (NBR) compound designed for low-hardness sealing applications that require excellent flexibility and oil resistance. Qualified to ASTM D2000 M2BG410 and AMS 3201, it operates reliably across a service temperature range of -45°F to 225°F while maintaining good compression set behavior and elastic recovery. This compound is compatible with petroleum-based oils, water up to 212°F, salt and alkali solutions, and weak acids, making it suitable for a wide range of industrial and aerospace-adjacent fluid handling systems. Its softer durometer allows improved conformability and sealing performance in low clamp load or irregular gland conditions.
N0545-40 is commonly used for O-rings and gaskets in hydraulic equipment, pumps, valves, and general machinery where flexibility and oil compatibility are prioritized over high pressure extrusion resistance. It is not recommended for aromatic fuels, strong acids, glycols, ozone exposure, or polar solvents. This material provides a dependable, specification-backed nitrile solution for low-durometer sealing requirements. Canyon Components offers equivalent NBR materials designed to match the temperature capability, hardness, and AMS 3201 compliance of Parker N0545-40.
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