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 6320-00-480-7922
NSN 5990-00-402-7721
NSN 5915-00-603-9538
NSN 6130-01-373-5892
NSN 5930-00-987-3541
NSN 5905-00-564-7313
NSN 5985-00-150-2939
NSN 6130-01-605-2047
NSN 6620-00-572-7301
NSN 5920-01-057-0593
NSN 6150-00-472-5247
NSN 6220-01-604-6477