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 4140-01-294-0886
NSN 5835-00-104-8944
NSN 5895-01-408-8321
NSN 7035-01-643-4164
NSN 5925-00-186-8669
NSN 5895-01-323-4754
NSN 6110-00-246-3109
NSN 6135-00-862-5736
NSN 5895-01-158-7645
NSN 6610-01-500-0863
NSN 5965-01-633-8849
NSN 5975-01-422-0552