| 6AA4388 | U1278 | MINISTRY OF DEFENCE NAVY |
| 7758-9 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| SK7758-9 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| A56-A8 | K7766 | BRITISH STANDARDS INSTITUTION |
| A56A8 | K7766 | BRITISH STANDARDS INSTITUTION |
| A8 | K7766 | BRITISH STANDARDS INSTITUTION |