| 37J6510 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 71A/1492 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| G0706-7011-02D06 | D1461 | NOSKE-KAESER GMBH |
| H021-20-031 | K0086 | EDWARDS HIGH VACUUM PART OF BOC LTD |
| 7863 | K0377 | GOODRICH ACTUATION SYSTEMS LIMITED |
| BS4518 | K7766 | BRITISH STANDARDS INSTITUTION |
| RM0096-24P5 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |