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 6150-00-355-0461
NSN 5930-00-828-9448
NSN 5935-01-429-0891
NSN 6150-01-589-7869
NSN 5835-00-155-1379
NSN 6145-00-033-2997
NSN 6610-01-287-9814
NSN 5925-01-178-5210
NSN 6150-01-244-0879
NSN 5915-00-299-2105
NSN 5990-00-285-1948
NSN 5975-00-567-2766