Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.210 in
(5.33 mm)
21.955 in
(557.65 mm)
NBR NB90BK18 O-Ring, Size: -391
Material: NBR NB90BK18 O-Ring
Size: AS568 -391 O-Ring
Part Number: NB90BK18-OR-391
NB90BK18
NBR (Nitrile, Buna-N)
90
Shore A
Silicone Oil Filled
Sulfur Cured
Color: Black
Detailed Description
NB90BK18-OR-391 is a Black, 90 Shore A, Sulfur Cured NBR (Nitrile, Buna-N) O-Ring. It is a 90 durometer NBR (Nitrile, Buna-N). NB90BK18 is manufactured with the following features & specifications: Silicone Oil Filled. NB90BK18-OR-391 is AS568 size -391 O-Ring also referred to as 5.33mm (Cross Sectional Diameter (CS)) x 557.65mm (Inside Diameter (ID)). Material: 90 Durometer NBR NB90BK18 O-Ring Size: AS568 -391, 5.33mm CS X 557.65mm ID (0.210" CS X 21.955" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | NB90BK18 |
| Material | NBR (Nitrile, Buna-N) |
| Cure | Sulfur Cured |
| Color | Black |
| Durometer | 90 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 | -391 |
| Cross Section (CS) | 5.33 mm / 0.210 in |
| Inside Diameter (ID) | 557.65 mm / 21.955 in |
