| 16B6882 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 42920-2 | K0599 | COLCHESTER LATHE COMPANY LTD |
| ADSPEC1095A | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 42920-2 | K2440 | 600 UK LTD T/A COLCHESTER HARRISON |
| BS1440 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1440-B75 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN30-2 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |