| 15E | K7766 | BRITISH STANDARDS INSTITUTION |
| 28D12547 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| A25-15E | 0U583 | SAE INTERNATIONAL |
| 8880 | F0754 | SAFRAN MARTIN-BAKER FRANCE |
| A25 | K7766 | BRITISH STANDARDS INSTITUTION |
| A25-15E | K7766 | BRITISH STANDARDS INSTITUTION |
| B.S.A25-15E | 0U583 | SAE INTERNATIONAL |
| PE54887-7 | K0378 | ROLLS-ROYCE PLC |
| PE54887-7 | K5852 | ROLLS-ROYCE-LEAVSDEN |
| B.S.A25-15E | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |
| A25-15E | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |