| 22441-10459 | K0662 | LEONARDO MW LTD |
| 34-9123 | K2490 | THALES DEFENCE LTD |
| 461-38-038 | K6451 | BAE SYSTEMS MARINE LIMITED |
| 34-9123 | K8236 | RACAL-S E S LTD |
| 705731 | K8997 | RACAL RADIO LTD |
| 5D3072 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS4183SMMCFCSL03-0X010S00048NT | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| DEFSTAN53-23 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| M3X10CSKMS | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4183 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4183-TABLE 2 | K7766 | BRITISH STANDARDS INSTITUTION |
| F21-202-101-1 | K7806 | G E C COMPUTER SERVICES LTD |
| BS4183SMMCFCSL03-0X010S00048NT | K9090 | MINISTRY OF DEFENCE |