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 6620-01-330-8802
NSN 5996-01-088-2260
NSN 5998-00-587-2141
NSN 5855-00-149-0766
NSN 6135-01-463-2445
NSN 5925-00-969-3090
NSN 5925-00-462-5506
NSN 6105-00-596-9962
NSN 5990-01-463-2279
NSN 5925-01-619-6534
NSN 5835-01-555-8963
NSN 5998-01-358-1944