| 1C425 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS1806-425 | K7766 | BRITISH STANDARDS INSTITUTION |
| R8450DL990 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| SSML7-17 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| SSML7-17-1C425 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BSM48-425 | K7766 | BRITISH STANDARDS INSTITUTION |