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 5945-01-143-5725
NSN 5855-01-147-6024
NSN 6220-00-681-2707
NSN 5998-01-163-2401
NSN 6645-01-205-0549
NSN 5950-00-005-8994
NSN 5910-01-461-2704
NSN 6135-00-826-4798
NSN 6145-01-023-7719
NSN 5990-01-432-4249
NSN 5910-00-902-7265
NSN 6320-01-352-5653