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 6240-00-395-0019
NSN 6135-01-219-8612
NSN 4140-01-534-3962
NSN 6650-00-535-6923
NSN 6320-00-456-2092
NSN 5950-00-770-6322
NSN 5999-01-550-5481
NSN 5975-01-437-5961
NSN 5915-01-068-6826
NSN 5935-00-156-1182
NSN 5950-00-629-3650
NSN 5895-01-571-9755