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 5999-00-386-1029
NSN 5895-01-420-5970
NSN 5910-00-318-2826
NSN 5999-01-555-3854
NSN 5925-01-218-5999
NSN 5925-00-931-6138
NSN 5920-01-292-7625
NSN 5910-01-547-0666
NSN 6240-00-153-8929
NSN 5935-00-270-6698
NSN 5930-01-029-9012
NSN 2925-01-058-1718