| 53PR928 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BGL526 | K3309 | GILBARCO VEEDER-ROOT A DIVISION OF DANAHER UK INDUSTRIES LIMITED |
| DEFSTAN53-43 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS1981 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1981-TABLE 14 8 UNC X 7/16 | K7766 | BRITISH STANDARDS INSTITUTION |
| Y5335-676J | U0041 | PRESTOLITE ELECTRIC LIMITED TEMS |