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 6150-01-658-7319
NSN 5996-01-326-2491
NSN 5999-01-542-9923
NSN 6220-00-419-0635
NSN 6130-01-457-9411
NSN 2925-01-088-3612
NSN 5990-01-116-2181
NSN 7035-01-029-7221
NSN 7035-01-062-0184
NSN 5910-01-653-2345
NSN 5945-01-100-3110
NSN 5855-00-106-1640