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

NBR NB90BK18 O-Ring, Size: -425
Material: NBR NB90BK18 O-Ring
Size: AS568 -425 O-Ring
Part Number: NB90BK18-OR-425
NB90BK18
NBR (Nitrile, Buna-N)
90
Shore A
Silicone Oil Filled
Sulfur Cured
Color: Black
Detailed Description
NB90BK18-OR-425 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-425 is AS568 size -425 O-Ring also referred to as 6.99mm (Cross Sectional Diameter (CS)) x 113.67mm (Inside Diameter (ID)). Material: 90 Durometer NBR NB90BK18 O-Ring Size: AS568 -425, 6.99mm CS X 113.67mm ID (0.275" CS X 4.475" 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 | -425 |
| Cross Section (CS) | 6.99 mm / 0.275 in |
| Inside Diameter (ID) | 113.67 mm / 4.475 in |



