| Material | Aluminum |
| O-ring Material | FKM (Viton / Fluorocarbon) |
| O-ring Temperature | -20C to 220C |
| Size | KF40 / NW40 |
| Pack Quantity | 10 pieces |
NW40 centering ring made of aluminum with FKM Viton O-ring. FKM offers excellent chemical and heat resistance with working temperature from -20C to 220C.