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 5965-00-543-1837
NSN 5965-01-449-1711
NSN 5985-01-237-2570
NSN 5910-00-717-3963
NSN 5835-00-447-1924
NSN 6130-00-250-0684
NSN 5905-01-250-2608
NSN 5905-01-495-6593
NSN 5950-01-175-5971
NSN 5935-00-299-2102
NSN 5965-00-836-2690
NSN 6620-00-905-6590