| 222 | K7766 | BRITISH STANDARDS INSTITUTION |
| 5020 ITEM 25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 5020/25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO407 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BS1806-222 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-222 | K7766 | BRITISH STANDARDS INSTITUTION |
| MV22/MK22 ITEM 25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| MV22/MK22/25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NA.30296 ITEM 25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NA.30296/25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| DEFSTAN02-337-222-MN80 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-222-MN80 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| P.L.004501924 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| P.L.004501924 REFERENCE 1105 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| P.L. M.C.M./372/04/001 | K4944 | BAE SYSTEMS SURFACE SHIPS LIMITED |
| P.L. M.C.M./372/04/001 REFERENC- | K4944 | BAE SYSTEMS SURFACE SHIPS LIMITED |
| NES337-222-MN80-(N83B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |