| 2-431V747-75 | 02697 | PARKER-HANNIFIN CORP |
| 2-431V747-75 | C0308 | PARKER HANNIFIN GMBH O-RING DIVISION |
| NAS1593-431 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
| AS3209-431 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| M83248/1-431 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| MIL-R-83248/1 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |