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 5999-01-010-3494
NSN 5915-01-158-3759
NSN 6320-01-498-4954
NSN 5950-00-517-0467
NSN 6110-00-834-0595
NSN 5835-01-352-7211
NSN 6150-01-094-7298
NSN 4140-00-473-2324
NSN 5950-01-508-3947
NSN 5996-00-248-7061
NSN 6220-01-463-3380
NSN 6610-01-424-0283