| 5K6170 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| B19751 | K0967 | MBDA UK LTD |
| DEFSTAN53-13 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| B19751 | K1020 | MBDA UK LTD |
| D20 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93D20 | K0056 | STANDARD RUBBER GROMMETS LTD |
| SP93D20 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93-D20 | K7766 | BRITISH STANDARDS INSTITUTION |