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 2925-01-154-2949
NSN 5895-01-100-3759
NSN 6110-01-437-1495
NSN 5990-01-294-6198
NSN 6110-00-912-3174
NSN 5975-01-400-0627
NSN 5985-01-465-6866
NSN 5925-01-373-4857
NSN 5998-01-634-0604
NSN 5835-01-632-6627
NSN 6145-01-442-3161
NSN 5998-01-216-2744