| 200-251-4470 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK)LTD |
| 251 | K7766 | BRITISH STANDARDS INSTITUTION |
| 352250016594 | H0203 | THALES NEDERLAND B.V. |
| 251NBRM75 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) |
| 251NBRM80 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) |
| 5330-038389 | U1278 | MINISTRY OF DEFENCE NAVY |
| DEFSTAN02-337-251-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 |
| 5330-522-3072 | K6984 | DEFENCE LOGISTICS AGENCY |
| 828/10181 | K7599 | J.C. BAMFORD EXCAVATORS LIMITED |
| CV127534 | K7599 | J.C. BAMFORD EXCAVATORS LIMITED |
| BS1806-251 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-251 | K7766 | BRITISH STANDARDS INSTITUTION |
| NES 337-251-MN80 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES337-251-MN80-(N83B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |