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| 36BC656 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BN7179AS | K0378 | ROLLS-ROYCE PLC |
| BN7179AS | K5852 | ROLLS-ROYCE-LEAVSDEN |
| BS1806-340 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-340 | K7766 | BRITISH STANDARDS INSTITUTION |
| R183 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| R6337 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |