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 5930-01-469-5503
NSN 5835-01-203-8295
NSN 6145-01-442-8995
NSN 6110-00-519-2972
NSN 6150-00-466-2892
NSN 5915-00-849-9419
NSN 2925-01-299-6967
NSN 6645-01-126-7020
NSN 5895-01-216-6194
NSN 5996-00-358-1899
NSN 7035-00-763-6180
NSN 5905-00-707-1030