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 5835-01-357-9235
NSN 5965-01-288-0721
NSN 7035-01-556-9060
NSN 6135-01-391-6515
NSN 6110-00-936-8416
NSN 5950-00-366-7008
NSN 4140-01-598-2924
NSN 5975-01-155-6574
NSN 5998-00-905-7385
NSN 5990-01-577-2120
NSN 5905-01-033-3046
NSN 5905-01-155-9764