| 1L238 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 238L11244LR1545 | K5924 | BESTOBELL SEALS LTD |
| SSML7-17 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| SSML7-17-1L238 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS1806-238 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-238 | K7766 | BRITISH STANDARDS INSTITUTION |