| BS4518 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4518-0116-24 | K7766 | BRITISH STANDARDS INSTITUTION |
| M1536-211309 | A196N | FMV, FORSVARETS MATERIELVERK - SWEDISH DEFENCE MATERIEL ADMINISTRATION |
| O-RING | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| O-RING | K7766 | BRITISH STANDARDS INSTITUTION |
| M1536-211309 | SZ003 | FMV, SWEDISH DEFENCE MATERIEL ADMINISTRATION |
| SIZE RM0116-24 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
| RM0116-24 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| O-RING | K8098 | MAN DIESEL & TURBO LTD |
| OD30381 | K8098 | MAN DIESEL & TURBO LTD |