
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.275 in
(6.99 mm)
5.975 in
(151.77 mm)

NBR NB70BK55 O-Ring, Size: -437
Material: NBR NB70BK55 O-Ring
Size: AS568 -437 O-Ring
Part Number: NB70BK55-OR-437
Color: Black
Detailed Description
NB70BK55-OR-437 is a Black, 70 Shore A, NBR (Nitrile, Buna-N) O-Ring. It is a 70 durometer NBR (Nitrile, Buna-N). NB70BK55-OR-437 is AS568 size -437 O-Ring also referred to as 6.99mm (Cross Sectional Diameter (CS)) x 151.77mm (Inside Diameter (ID)). Material: 70 Durometer NBR NB70BK55 O-Ring Size: AS568 -437, 6.99mm CS X 151.77mm ID (0.275" CS X 5.975" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | NB70BK55 |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 95 °C / 203 °F |
| Low Temperature | -50 °C / -58 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -437 |
| Cross Section (CS) | 6.99 mm / 0.275 in |
| Inside Diameter (ID) | 151.77 mm / 5.975 in |


