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 5996-01-624-1409
NSN 6650-01-653-2556
NSN 5945-00-269-5375
NSN 5920-00-061-3361
NSN 5930-00-516-1217
NSN 6135-00-708-0892
NSN 5998-01-351-4052
NSN 5935-01-081-2969
NSN 2925-00-347-7893
NSN 6645-01-296-9769
NSN 5895-00-778-2946
NSN 6645-01-443-4854