
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.157 in
(4.00 mm)
4.016 in
(102.00 mm)

NBR NB70BK21 O-Ring, Size: 4X102
Material: NBR NB70BK21 O-Ring
Size: Metric 4X102 O-Ring
Part Number: NB70BK21-OR-4X102
NB70BK21
NBR (Nitrile, Buna-N)
70
Shore A
MOS2 Filled
Sulfur Cured
Color: Black
Detailed Description
NB70BK21-OR-4X102 is a Black, 70 Shore A, Sulfur Cured NBR (Nitrile, Buna-N) O-Ring. It is a 70 durometer NBR (Nitrile, Buna-N). NB70BK21 is manufactured with the following features & specifications: MOS2 Filled. NB70BK21-OR-4X102 is Metric size 4X102 O-Ring also referred to as 4mm (Cross Sectional Diameter (CS)) x 102mm (Inside Diameter (ID)). Material: 70 Durometer NBR NB70BK21 O-Ring Size: Metric 4X102, 4mm CS X 102mm ID (0.157" CS X 4.016" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | NB70BK21 |
| Material | NBR (Nitrile, Buna-N) |
| Cure | Sulfur Cured |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 125 °C / 257 °F |
| Low Temperature | -35 °C / -31 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | Metric |
| Size | 4X102 |
| Cross Section (CS) | 4.00 mm / 0.157 in |
| Inside Diameter (ID) | 102.00 mm / 4.016 in |



