
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.139 in
(3.53 mm)
4.109 in
(104.37 mm)

NBR NB40BK50 O-Ring, Size: -243
Material: NBR NB40BK50 O-Ring
Size: AS568 -243 O-Ring
Part Number: NB40BK50-OR-243
Color: Black
Detailed Description
NB40BK50-OR-243 is a Black, 40 Shore A, NBR (Nitrile, Buna-N) O-Ring. It is a 40 durometer NBR (Nitrile, Buna-N). NB40BK50-OR-243 is AS568 size -243 O-Ring also referred to as 3.53mm (Cross Sectional Diameter (CS)) x 104.37mm (Inside Diameter (ID)). Material: 40 Durometer NBR NB40BK50 O-Ring Size: AS568 -243, 3.53mm CS X 104.37mm ID (0.139" CS X 4.109" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | NB40BK50 |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 40 Shore A Hardness |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -243 |
| Cross Section (CS) | 3.53 mm / 0.139 in |
| Inside Diameter (ID) | 104.37 mm / 4.109 in |


