MIL-P-17553A, MILITARY SPECIFICATION: PACKING, PREFORMED, O RING, SYNTHETIC RUBBER (22-JUN-1976)

MIL-P-17553A, MILITARY SPECIFICATION: PACKING, PREFORMED, O RING, SYNTHETIC RUBBER (22-JUN-1976)., This specification covers synthetic rubber O-ring preformed packing used to provide both a high-pressure and a low-pressure seal within rockets.