MIL-L-83767B, MILITARY SPECIFICATION: LUBRICATING OIL, VACUUM PUMP, MECHANICAL (08-FEB-1980) [S/S BY MIL-DTL-83767C]
MIL-L-83767B, MILITARY SPECIFICATION: LUBRICATING OIL, VACUUM PUMP, MECHANICAL (08-FEB-1980) [S/S BY MIL-DTL-83767C]., This specification covers the requirements for four types of lubricating oils for use in mechanical vacuum pumps (see 6.1).