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 6145-00-686-8651
NSN 6650-00-466-1697
NSN 5960-00-392-6291
NSN 5835-00-594-4921
NSN 5975-01-375-8080
NSN 5910-01-019-8030
NSN 6620-01-512-2016
NSN 6150-01-038-8137
NSN 6320-00-242-3300
NSN 4140-01-189-7899
NSN 4140-01-644-2120
NSN 5998-01-098-7432