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 7035-01-633-9537
NSN 5855-01-565-5030
NSN 6145-00-596-8447
NSN 5990-00-504-7952
NSN 5945-00-738-5941
NSN 5915-01-445-1674
NSN 5945-01-271-8697
NSN 5925-01-392-1242
NSN 6135-01-226-4071
NSN 5999-01-342-8933
NSN 2925-01-100-3694
NSN 5999-00-645-8875