| 12801-2599 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| BS2470 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN 53-56 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| E12801-2599 | K1488 | BRITISH AEROSPACE PLC NAVAL AND ELECTRONIC SYSTEMS DIVISION |
| BS2470 TABLE 6A-2UNCX0.188 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP | U1811 | UNBRAKO A DIVISION OF S P S TECHNOLO IES LTD |