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 5925-01-133-9489
NSN 5920-01-605-3232
NSN 6620-00-193-9503
NSN 5910-01-357-6484
NSN 5975-01-140-1195
NSN 5965-00-455-7581
NSN 6645-01-351-6900
NSN 5855-01-066-2882
NSN 5925-00-199-9565
NSN 5895-00-946-2594
NSN 5925-00-853-3832
NSN 5950-01-176-0481