CS
0.050 in
(1.27 mm)
ID
0.154 in
(3.91 mm)
NBR NB70BK21 O-Ring, Size: 1.27X3.91
Material: NBR NB70BK21 O-Ring
Size: Metric 1.27X3.91 O-Ring
Part Number: NB70BK21-OR-1.27X3.91
NB70BK21
NBR (Nitrile, Buna-N)
70
Shore A
MOS2 Filled
Sulfur Cured
Color: Black
Detailed Description
NB70BK21-OR-1.27X3.91 is a Black, 70 Shore A, Sulfur Cured NBR (Nitrile, Buna-N) O-Ring. NB70BK21 is manufactured with the following features & specifications: MOS2 Filled. NB70BK21-OR-1.27X3.91 is Metric size 1.27X3.91 O-Ring also referred to as 1.27mm (Cross Sectional Diameter (CS)) x 3.91mm (Inside Diameter (ID)).
Material: NBR NB70BK21 O-Ring
Size: Metric 1.27X3.91, 1.27mm CS X 3.91mm ID (0.050" CS X 0.154" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | NB70BK21 |
| Material | NBR (Nitrile, Buna-N) |
| Cure | Sulfur Cured |
| 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 | Metric |
| Size | 1.27X3.91 |
| Cross Section (CS) | 1.27 mm / 0.050 in |
| Inside Diameter (ID) | 3.91 mm / 0.154 in |