| 0R3P90 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| 26DB486 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| R105P90 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| BS1806-010 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-010 | K7766 | BRITISH STANDARDS INSTITUTION |
| 27KC615 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |