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 5996-00-173-2620
NSN 5999-00-781-3116
NSN 6240-00-080-2012
NSN 5985-01-136-2511
NSN 5905-01-634-0595
NSN 5965-01-199-8362
NSN 6220-01-204-0342
NSN 6145-01-513-9126
NSN 6650-00-650-1683
NSN 5999-00-998-6922
NSN 5960-01-627-6547
NSN 2925-01-511-5359