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 5915-01-473-2455
NSN 6105-00-141-0300
NSN 6320-00-779-5923
NSN 6320-00-194-4252
NSN 6130-01-433-4982
NSN 2925-01-633-4048
NSN 5960-01-614-8005
NSN 6650-00-185-8344
NSN 5905-00-016-3709
NSN 5935-01-359-1017
NSN 5945-00-515-2667
NSN 5910-01-068-4472