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 5925-00-660-7589
NSN 6685-00-012-3734
NSN 7035-01-119-6271
NSN 5999-01-634-0576
NSN 5905-01-242-6980
NSN 5990-01-414-2778
NSN 5998-01-422-5518
NSN 5835-00-847-7277
NSN 6220-01-199-0794
NSN 6320-01-209-0952
NSN 6135-01-633-8502
NSN 5950-00-988-5465