| 1793-28 | 91265 | PARKER-HANNIFIN CORPORATION |
| 2-028N602-70 | C0308 | PARKER HANNIFIN GMBH O-RING DIVISION |
| 2-28N602-70 | 02692 | DOLLY MFG CORP |
| 2-28N602-70 | 02697 | PARKER-HANNIFIN CORP |
| 22502-28 | 00624 | EATON AEROQUIP LLC |
| 22502-28 | R1120 | SATAIR A/S |
| 3013836 | S4956 | EMBRAER EMPRESA BRASILEIRA DE AERONAUTICA SA |
| 457-60-28 | 77308 | PARCO, LLC |
| 7866-28 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| MS29513-28 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| SR-822A-60-28 | 95272 | STILLMAN SEAL CORPORATION |