| 259 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-259 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-259 | K7766 | BRITISH STANDARDS INSTITUTION |
| D11985C | U4708 | HMD SEAL/LESS PUMPS LTD |
| D11985C | U7901 | HMD SEAL/LESS PUMPS LTD |
| DEFSTAN02-337-259-FC70 | 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 337-259-FC70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| SFWCS18A | U4708 | HMD SEAL/LESS PUMPS LTD |
| NES337-259-FC70-(V72G) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |
| SFWCS18A | U7901 | HMD SEAL/LESS PUMPS LTD |