| 5K6203 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 991-4-00086-077 | K0668 | LEONARDO UK LTD |
| DEFSTAN53-13 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 991-4-00086-077 | K1423 | BRITISH AEROSPACE LAND & SEA SYSTEMS POST DESIGN SERVICES |
| D40 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93D40 | K0056 | STANDARD RUBBER GROMMETS LTD |
| SP93D40 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93-D40 | K7766 | BRITISH STANDARDS INSTITUTION |