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 6650-01-175-0841
NSN 6650-00-670-2516
NSN 6645-01-114-8044
NSN 5920-00-853-0177
NSN 6145-01-023-7719
NSN 6130-00-187-5107
NSN 5855-01-154-3871
NSN 6135-01-010-0891
NSN 5920-00-445-3585
NSN 6145-00-337-3188
NSN 2925-00-406-2835
NSN 5960-01-045-8524