| 20-233-1198-11 | K5294 | GE AVIATION SYSTEMS LIMITED |
| 21941-142-212 | K0361 | THORN E M I ELECTRONICS LTD |
| 4010957 | K1384 | RACAL RADAR DEFENCE SYSTEMS LTD |
| 47431-032-3 | K4547 | SIEMENS AIR TRAFFIC MANAGEMENT |
| 47431-032-00-3 | K4556 | BRITISH AEROSPACE DEFENCE SYSTEMS LTD T/A BAE SYSTEMS |
| 3/81736 | U3253 | BISHOP LIFTING SERVICES LTD |
| BS4183SMMCPNSL06-0X020S00048C6 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| DEFSTAN53-23 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 991-4-10396-067 | K1423 | BRITISH AEROSPACE LAND & SEA SYSTEMS POST DESIGN SERVICES |
| BS4183-TABLE 4 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4183SMMCPNSL06-0X020S00048C6 | K9090 | MINISTRY OF DEFENCE |
| MF306002-220 | U2248 | SELEX ELSAG LTD |