
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.210 in
(5.33 mm)
4.225 in
(107.32 mm)

NBR NB50BK40 O-Ring, Size: -347
Material: NBR NB50BK40 O-Ring
Size: AS568 -347 O-Ring
Part Number: NB50BK40-OR-347
Color: Black
Detailed Description
NB50BK40-OR-347 is a Black, 50 Shore A, NBR (Nitrile, Buna-N) O-Ring. It is a 50 durometer NBR (Nitrile, Buna-N). NB50BK40 is manufactured with the following features & specifications: UL 157, UL Listed Material. NB50BK40-OR-347 is AS568 size -347 O-Ring also referred to as 5.33mm (Cross Sectional Diameter (CS)) x 107.32mm (Inside Diameter (ID)). Material: 50 Durometer NBR NB50BK40 O-Ring Size: AS568 -347, 5.33mm CS X 107.32mm ID (0.210" CS X 4.225" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | NB50BK40 |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 50 Shore A Hardness |
| High Temperature | 60 °C / 140 °F |
| Low Temperature | -40 °C / -40 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -347 |
| Cross Section (CS) | 5.33 mm / 0.210 in |
| Inside Diameter (ID) | 107.32 mm / 4.225 in |
| Other Specifications | |
UL 157 | |
UL Listed Material | |


