| 127 | K7766 | BRITISH STANDARDS INSTITUTION |
| 8027 ITEM 25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 8027/25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO5623 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-127 | K7766 | BRITISH STANDARDS INSTITUTION |
| NC37222 ITEM 25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NC37222/25 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| DEFSTAN02-337 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| DEFSTAN02-337-127-FC70 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-127-FC70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BSM48-127 | K7766 | BRITISH STANDARDS INSTITUTION |
| NES337 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES337-127-FC70-(V72G) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |