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 4140-01-522-5017
NSN 5965-00-139-1039
NSN 6320-01-278-9832
NSN 6130-00-233-8013
NSN 5998-01-346-9928
NSN 6620-01-072-9372
NSN 5945-00-287-8022
NSN 6130-01-209-4874
NSN 5935-01-215-1422
NSN 5910-01-199-9199
NSN 5930-01-068-3641
NSN 6110-01-164-8480