MIL-L-83767B (NOTICE 2), MILITARY SPECIFICATION: LUBRICATING OIL, VACUUM PUMP, MECHANICAL (30-MAY-1991) [S/S BY MIL-DTL-83767C]
MIL-L-83767B (NOTICE 2), MILITARY SPECIFICATION: LUBRICATING OIL, VACUUM PUMP, MECHANICAL (30-MAY-1991) [S/S BY MIL-DTL-83767C].