| 1L155 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS4006 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN51-11 PART 4 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| DL-9-A | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| H4393 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| TABLE 35 3/8X9/32 A/F FORM A | K7766 | BRITISH STANDARDS INSTITUTION |