| 5K6174 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| B22 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93B22 | K0289 | BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES |
| DEFSTAN53-13 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| SP93 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93-B22 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93B22 | K1987 | BAE SYSTEMS PLC |
| SP93B22 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP93B22 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |