NBR NB50BK00 O-Ring, Size: -004
Material: NBR NB50BK00 O-Ring
Size: AS568 -004 O-Ring
Part Number: NB50BK00-OR-004
Color: Black
Detailed Description
NB50BK00-OR-004 is a Black, 50 Shore A, Sulfur Cured NBR (Nitrile, Buna-N) O-Ring. It is a 50 durometer NBR (Nitrile, Buna-N). NB50BK00 is manufactured with the following features & specifications: General Purpose Material. NB50BK00-OR-004 is AS568 size -004 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 1.78mm (Inside Diameter (ID)).
Material: 50 Durometer NBR NB50BK00 O-Ring
Size: AS568 -004, 1.78mm CS X 1.78mm ID (0.070" CS X 0.070" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | NB50BK00 |
| Material | NBR (Nitrile, Buna-N) |
| Cure | Sulfur Cured |
| Color | Black |
| Durometer | 50 Shore A Hardness |
| High Temperature | 125 °C / 257 °F |
| Low Temperature | -35 °C / -31 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -004 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 1.78 mm / 0.070 in |
NB50BK00 is Canyon’s standard 50 Shore A black nitrile rubber (NBR) compound designed as a cost-effective, general-purpose material for O-rings and gaskets used in oil-handling and industrial sealing applications. This compound provides good abrasion resistance and low compression set, helping maintain reliable sealing performance in static and light dynamic service. With a service temperature range of -35°C to 122°C (-31°F to 252°F), NB50BK00 performs well in contact with petroleum-based oils while offering improved flexibility compared to higher-durometer nitrile grades. Its balanced hardness supports good conformability to gland surfaces, reducing the risk of installation damage and leakage under low to moderate loads. Compare NB50BK00 to Parker N0299-50 for similar low-durometer nitrile performance and application fit.
NB50BK00 meets ASTM D2000 M2BG508 requirements and is commonly used in pumps, valves, hydraulic components, and general industrial equipment where a softer NBR is preferred. This material is well suited for applications that prioritize ease of sealing, durability, and cost control without requiring specialty chemical resistance. Canyon Components offers NB50BK00 as a dependable nitrile option for standard O-ring and gasket designs across a wide range of industrial environments.
Common relevant keywords:
50 Shore A NBR, nitrile rubber O-rings, soft nitrile gaskets, general purpose NBR seals, oil resistant rubber sealing material, ASTM D2000 nitrile compound, industrial NBR O-rings, low compression set nitrile rubber, Parker N0299-50 alternative, Datasheet, TDS, Test Report, MTR, MSDS, SDS, Parker N0299-50 O-rings, Parker N299-50 nitrile seals, Parker N0299 gasket material, Parker N299 Buna-N O-rings, Parker N0299 low compression set gasket, Parker N0299 NBR compound
