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 5990-00-400-4794
NSN 5855-01-337-9488
NSN 6650-01-063-1602
NSN 7035-00-252-7467
NSN 7035-01-160-4423
NSN 7035-00-205-1932
NSN 5925-01-158-0762
NSN 5998-01-400-6739
NSN 5990-01-380-7815
NSN 6320-00-360-1744
NSN 6220-01-598-6900
NSN 7035-00-104-7613