| 6TD1778 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 81SPS0004-2-025 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
| BS1981 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981-TABLE 12 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981TABLE12 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981TABLE12-2-56UNCX1-4 | U9115 | MINISTRY OF DEFENCE BRITISH STANDARD REFERENCES CONSTRUCTED TO A DEFINITI LEVEL FOR EUROFIGHTER AND TORNADO U NCB TASKING |