(red shows the dimensions of the item available on this listing )
| Size | Internal Dia | External Dia | Thickness |
| 3/16" | 5.1 | 9 | 1.2 |
| 1/4" | 6.3 | 11.3 | 1.2 |
| 5/16" | 8.1 | 12.3 | 1.2 |
| 3/8" | 10.2 | 14.2 | 1.2 |
| 7/16" | 12.2 | 16.4 | 1.2 |
| 1/2" | 13.1 | 18 | 1.2 |
| 9/16" | 14.2 | 20 | 1.2 |
| 5/8" | 16.1 | 22.3 | 1.2 |
| 3/4" | 19.1 | 26.2 | 1.2 |
| 7/8" | 23.2 | 30.1 | 1.2 |
| 1" P | 26.3 | 33.4 | 1.2 |
.
Internal, external & thickness dimensions shown in mm however these are imperial washers.
These washers offer very good sealing properties even at low tightening torques compared to other sealing washers.
They compensate for the surface defects and maintain a certain flexibility when installed.
Resistant to rust and oxidation
Electrical conductivity
Resistant to tearing