| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| 7E8017408 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS1806-116 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-116 | K7766 | BRITISH STANDARDS INSTITUTION |
| LV6MT1-93802 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |