O-Ring: 231, 2 5/8 in Nominal Inside Dia., 2 7/8 in Nominal Outside Dia., 85 Shore A
Item: 1WHH6, MFR: 1WHH6, Brand: GRAINGER APPROVED
| Dash Number | 231 |
| System of Measurement | Inch |
| Cross Section Shape | Round |
| O-Ring Material | FEP with Silicone Core |
| Durometer | 85 Shore A |
| Color | Clear with Red Core |
| Nominal Inside Dia. | 2-5/8 in |
| Actual Inside Dia. | 2.609 in |
| Nominal Outside Dia. | 2-7/8 in |
| Actual Outside Dia. | 2.887 in |
| Nominal Width | 1/8 in |
| Actual Width | 0.139 in |
| Durometer (Hardness) Rating | Hard |
| FDA Approved | Yes |
| Metal Detectable | No |
| X-Ray Detectable | No |