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 5925-00-848-9073
NSN 6645-01-556-5263
NSN 6150-01-316-9133
NSN 6650-00-238-1199
NSN 5915-00-925-2513
NSN 6320-01-345-5817
NSN 2925-01-564-6585
NSN 6135-00-461-3590
NSN 6105-01-386-1529
NSN 7035-01-232-7263
NSN 6620-01-398-8986
NSN 5990-01-373-7545