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 6240-00-332-2084
NSN 5910-00-679-9556
NSN 5950-01-557-2716
NSN 6105-01-578-6318
NSN 5990-00-905-5537
NSN 5925-01-659-3316
NSN 5835-01-396-0640
NSN
NSN 6645-00-620-9294
NSN 5905-00-055-5127
NSN 5960-01-227-5245
NSN 5930-00-959-7468