| 2-256 N304-75 | C0308 | PARKER HANNIFIN GMBH O-RING DIVISION |
| 2-256 PSI-30-5 | 02697 | PARKER-HANNIFIN CORP |
| 256-711-70 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| 256-7117 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| 256-737-70 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| 256-7377 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| PRP256-7117 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| PRP256-7377 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| AS568-256MIL-P-25732 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS568-256MIL-P-5516CLASSB | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |