ZZ-R-768A, FEDERAL SPECIFICATION: RUBBER FOR MOUNTINGS (UNBONDED-SPOOL AND COMPRESSION TYPES) (25 NOV 1966)

ZZ-R-768A, FEDERAL SPECIFICATION: RUBBER FOR MOUNTINGS (UNBONDED-SPOOL AND COMPRESSION TYPES) (25 NOV 1966)., This specification covers uncured rubber compound or finished (cured) resilient components to be used in unbonded-spool and compression typed mountings, as specified.