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 5975-01-415-0918
NSN 4140-01-618-9702
NSN 5915-00-097-6321
NSN 6240-01-069-4711
NSN 5999-00-107-5622
NSN 7035-01-516-4516
NSN 5998-01-109-4236
NSN 4140-00-862-5644
NSN 6610-01-650-6364
NSN 6685-00-885-7008
NSN 2925-01-303-5266
NSN 5920-00-081-9156