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 5998-00-178-1040
NSN 5925-01-422-7967
NSN 5999-01-510-3027
NSN 5835-01-522-9881
NSN 2925-01-444-2061
NSN 7035-01-512-2453
NSN 6110-01-347-9465
NSN 7035-01-220-6392
NSN 5965-01-447-7911
NSN 5910-00-233-8005
NSN 5945-00-412-9571
NSN 5950-00-873-1896