| 274 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-274 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN02-337-274-MN80 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| M28400131TEM130 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED |
| M28400131TEM130 | K6894 | BAE SYSTEMS RO DEFENCE |
| BSM48-274 | K7766 | BRITISH STANDARDS INSTITUTION |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-274-MN80 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES337-274-MN80-(N83B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |