| 20234-1590-100 | K0663 | FERRANTI TECHNOLOGIES LTD |
| 22441-10439 | K0662 | LEONARDO MW LTD |
| BS4183SMMCFCSL02-0X010S00048NT | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| BS4183-TABLE 2 | K7766 | BRITISH STANDARDS INSTITUTION |
| 61451-110-1 | K8082 | ULTRA ELECTRONICS LIMITED |
| BS4183SMMCFCSL02-0X010S00048NT | K9090 | MINISTRY OF DEFENCE |
| DEFSTAN53-23 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |