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| AS568-443 MIL-R-83248 CLASS 2 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| AS568-443AMS7279 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
| M83248/2-443 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
| A-443SR280-90 | 95272 | STILLMAN SEAL CORPORATION |
| PRP443-19359 | 25184 | PARKER HANNIFIN CORPORATION DIV O-RING DIVISION |
| PRP568-443-9009-90 | 77308 | PARCO, LLC |
| NAS1594-443 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
| MIL-R-83248/2 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |