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 6610-01-265-1824
NSN 6110-00-172-1809
NSN 5950-01-089-8465
NSN 6610-01-394-4944
NSN 6620-01-104-5510
NSN 7035-01-263-0154
NSN 6685-00-176-5093
NSN 5935-00-964-9375
NSN 5996-01-521-4007
NSN 4140-00-303-3133
NSN 5835-01-158-6878
NSN 6650-01-547-8928