| 660-04-812102-220-80 | U2982 | BAE SYSTEMS DEFENCE SYSTEMS LTD |
| 989007456 | U3210 | PLESSEY SECURE DIGITAL SYSTEMS LTD |
| BS4183SMMCPNSL02-5X020S00048NT | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 991-4-02030-081 | K1423 | BRITISH AEROSPACE LAND & SEA SYSTEMS POST DESIGN SERVICES |
| 991-4-01506-012 | K2523 | EATON LIMITED |
| BS4183-TABLE 4 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN53-23 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS4183SMMCPNSL02-5X020S00048NT | K9090 | MINISTRY OF DEFENCE |