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 4140-01-387-2068
NSN 5990-01-411-5930
NSN 5835-00-174-7763
NSN 6685-01-143-5911
NSN 6150-01-424-0996
NSN 7035-00-064-7008
NSN 5945-01-342-4501
NSN 5930-01-545-0747
NSN 5905-01-633-7101
NSN 5965-01-250-8542
NSN 5999-01-452-9273
NSN 6610-01-611-5323