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 4140-01-068-3500
NSN 5950-00-525-5596
NSN 5915-00-089-2591
NSN 6240-01-407-0596
NSN 6685-01-655-6079
NSN 6105-01-628-9110
NSN 6610-00-222-4108
NSN 5998-00-347-9473
NSN 5835-00-869-9288
NSN 6610-01-224-7247
NSN 5925-00-220-6841
NSN 6320-01-209-0952