| 018 | K7766 | BRITISH STANDARDS INSTITUTION |
| 9552 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 9552 ITEM 34 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| B03225 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO1883 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| NB49020 ITEM 39 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NB49020/39 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NB50293 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NB50293 ITEM 34 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| DEFSTAN02-337-018-MN80 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BS1806-018 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-018 | K7766 | BRITISH STANDARDS INSTITUTION |
| PL9137 ITEM 39 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| PL9137/39 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NES 337-018-MN80 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-018-MN80-(N83B) | L6427 | MOBILE VALVE REPAIRS |
| NES 337-018-MN80-(N83B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |
| NES337-018-MN80-(N83B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |