NBR NB70BK15 O-Ring, Size: -018
Material: NBR NB70BK15 O-Ring
Size: AS568 -018 O-Ring
Part Number: NB70BK15-OR-018
NB70BK15
NBR (Nitrile, Buna-N)
70
Shore A
W270, CLP
WRAS (Drinking Water)
FDA Compliant
Color: Black
Detailed Description
NB70BK15-OR-018 is a Black, 70 Shore A, NBR (Nitrile, Buna-N) O-Ring. NB70BK15 is manufactured with the following features & specifications: W270, CLP, WRAS (Drinking Water), FDA Compliant. NB70BK15-OR-018 is AS568 size -018 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 18.77mm (Inside Diameter (ID)).
Material: NBR NB70BK15 O-Ring
Size: AS568 -018, 1.78mm CS X 18.77mm ID (0.070" CS X 0.739" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | NB70BK15 |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 70 Shore A |
| High Temperature | 125 °C / 257 °F |
| Low Temperature | -35 °C / -31 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -018 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 18.77 mm / 0.739 in |
| Other Specifications | |
W270, CLP | |
WRAS (Drinking Water) | |
FDA Compliant | |
NB70BK15 is Canyon’s FDA compliant, WRAS and W270 approved 70 Shore A black nitrile rubber (NBR) compound engineered for O-rings and gaskets used in drinking water systems and food manufacturing equipment. This material is designed to meet potable water and food-contact requirements while delivering low compression set and reliable long-term sealing performance. With a service temperature range of -35°C to 125°C (-31°F to 257°F), NB70BK15 performs well in water, mild process fluids, and common industrial environments encountered in regulated applications. Its balanced durometer supports dependable sealing in static and light dynamic service while maintaining cost-effective performance. Compare NB70BK15 to Parker N0674-70, N1470-70, NA151-70, and EP3609-70 for similar potable water and food-grade sealing applications.
NB70BK15 meets ASTM D2000 M2BG714 requirements and is well suited for valves, fittings, pumps, and plumbing components where WRAS BS6920-1, W270, and FDA 21 CFR 177.2600 compliance are required. This compound is commonly selected for municipal water, food processing, and industrial hygiene applications that demand documented material approvals. Canyon Components offers NB70BK15 as a dependable nitrile solution for regulated water and food-contact sealing needs.
Common relevant keywords:
WRAS approved nitrile rubber, W270 drinking water seals, FDA compliant NBR O-rings, potable water nitrile gaskets, food grade nitrile rubber, 70 Shore A NBR seals, black nitrile plumbing O-rings, ASTM D2000 nitrile compound, municipal water sealing elastomer, Parker N0674-70 equivalent, N1470-70 cross reference, NA151-70 alternative, EP3609-70 comparison, Datasheet, TDS, Test Report, MTR, MSDS, SDS


