A mechanical device designed to permit a free flow of air into and out of an enclosure, usually used on engine crankcase, vehicular differentials and transmissions, pumps, compressors, and the like. see also cap, vent, fuel storage tank. excludes ventalator (as modified).
Classification: Pressure-reducing valves, pneumatic fluid power type, filter-regulators and filter-regulator-lubricators
NSN 5925-01-334-1891
NSN 7035-00-585-2113
NSN 6645-01-077-9350
NSN 6150-00-593-5199
NSN 4140-01-406-3626
NSN 6110-01-513-9173
NSN 6685-01-563-6958
NSN 7035-01-375-3719
NSN 6240-01-016-2172
NSN 5910-01-432-2214
NSN 6220-00-929-4374
NSN 6110-01-290-3418