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 6620-01-052-1705
NSN 6105-01-352-0058
NSN 2925-00-167-6762
NSN 6130-00-820-2188
NSN 5855-01-323-5394
NSN 7035-01-540-2170
NSN 5996-01-303-6882
NSN 5985-01-018-3660
NSN 4140-01-626-0991
NSN 5960-01-460-0115
NSN 5920-01-260-3945
NSN 6685-01-281-0519