Image shown is representative and may differ from the actual product in size, proportions, and color shade
20.000 in
(508.00 mm)
27.500 in
(698.50 mm)
20
1.250 in
(31.75 mm)
25.000 in
(635.00 mm)
1/2"
NBR NB40BK00 Full Face Gasket, Size: 150#-20"-FF-1/2"
Material: NBR NB40BK00 Full Face Gasket
Size: 150#-20"-FF-1/2" Full Face Gasket
Part Number: NB40BK00-150#-20"-FF-1/2"
Color: Black
Detailed Description
NB40BK00-150#-20"-FF-1/2" is a Black, 40 Shore A, Sulfur Cured NBR (Nitrile, Buna-N) Full Face Gasket. It is a 40 durometer NBR (Nitrile, Buna-N). [NB40BK00 is manufactured with the following features & specifications: General Purpose Material. NB40BK00-150#-20"-FF-1/2" is a size 20, 150#-FF ASME Full Face Gasket. Material: 40 Durometer NBR NB40BK00 Full Face Gasket Size: 150#-20"-FF-1/2", 20 Pipe Size X 508mm ID X 698.5mm OD X 20 Bolt Qty X 31.750mm Bolt Dia. X 635.000mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | NB40BK00 |
| Material | NBR (Nitrile, Buna-N) |
| Cure | Sulfur Cured |
| Color | Black |
| Durometer | 40 Shore A Hardness |
| High Temperature | 125 °C / 257 °F |
| Low Temperature | -35 °C / -31 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 150#-20"-FF-1/2" |
| Pipe Size | 20 |
| ID | 508.00 mm / 20.000 in |
| OD | 698.50 mm / 27.500 in |
| Bolt Qty | 20 |
| Bolt Dia. | 31.75 mm / 1.250 in |
| Bolt Circle | 635.00 mm / 25.000 in |
| Thickness | 1/2" |
NB40BK00 is Canyon’s standard 40 Shore A black nitrile rubber (NBR) compound developed for general-purpose sealing where flexibility, oil resistance, and cost efficiency are important. This low-durometer material provides good abrasion resistance and low compression set, supporting reliable sealing performance in O-rings and gaskets used under light loads. With a service temperature range of -35°C to 122°C (-31°F to 252°F), NB40BK00 maintains elasticity in cooler conditions while remaining stable in contact with petroleum-based oils. It is commonly selected for static and light dynamic applications that benefit from improved conformability to gland surfaces. Compare to Parker N0545-40 for similar low-durometer nitrile performance.
NB40BK00 meets ASTM D2000 M2BG407 requirements and is suitable for pumps, valves, and general industrial equipment where a softer NBR is preferred. The compound’s balance of flexibility and durability helps reduce installation damage and supports consistent sealing over time. Canyon Components offers this material as a cost-effective alternative for applications requiring soft nitrile O-rings and gaskets without specialty chemical resistance.
Common relevant keywords:
40 Shore A NBR, soft nitrile O-rings, low durometer nitrile gaskets, general purpose NBR rubber, oil resistant sealing materials, flexible nitrile elastomer, ASTM D2000 NBR compound, industrial rubber seals, Parker N0545-40 alternative, Datasheet, TDS, Test Report, MTR, MSDS, SDS, Parker N0545-40 O-rings, Parker N545-40 nitrile seals, Parker N0545 gasket material, Parker N545 Buna-N O-rings, Parker N0545 AMS 3201 gasket, Parker N0545 low hardness NBR compound
