| 226 | K7766 | BRITISH STANDARDS INSTITUTION |
| AS12801-226 | C0308 | PARKER HANNIFIN GMBH O-RING DIVISION |
| AS12801-226 | U1068 | TRELLEBORG SEALING SOLUTIONS (UK)LTD |
| AS12801-226 | U1653 | SOCIETY OF BRITISH AEROSPACE COMPANI LTD SBAC |
| AS12801-226 | U1901 | MEGGITT AEROSPACE LTD T/A MEGGITTPOLYMERS AND COMPOSITES DBA DUNLOP BESTOBELL |
| AS12801-226 | U4330 | HALLITE SEALS INTERNATIONAL LTD T/A I POLYTEK |
| BSM48-226 | K7766 | BRITISH STANDARDS INSTITUTION |