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 5910-01-493-5231
NSN 5935-01-333-8112
NSN 5985-01-531-6870
NSN 5985-01-377-5264
NSN 5999-01-078-2528
NSN 6320-00-295-2854
NSN 5920-01-218-3885
NSN 5920-01-025-6989
NSN 2925-01-328-4394
NSN 5985-01-606-1757
NSN 5935-00-564-1355
NSN 6220-01-456-3692