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| 4F 11098 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-239 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-239 | K7766 | BRITISH STANDARDS INSTITUTION |
| ASC1459260 | Z4779 | ASC PTY LTD |
| OR154 | K5074 | EDBRO PLC |
| OAG 1239BB00 | K6539 | PALL EUROPE LIMITED AEROSPACE DIVISION |
| OR-239 | K6539 | PALL EUROPE LIMITED AEROSPACE DIVISION |
| C160013V | U3675 | PARKER HANNIFIN LIMITED |