| 5D3062 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 991/4/01548/059 | K6036 | G E C MARCONI DEFENCE SYSTEMS LTD |
| BS4183SMMCFFSL02-0X010S00048NT | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS4183-TABLE 5 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4183SMMCFFSL02-0X010S00048NT | K9090 | MINISTRY OF DEFENCE |
| 991/4/02030/059 | U3905 | PLESSEY ELECTRONIC SYSTEMS LTD |