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 5905-01-254-5191
NSN 5975-01-030-8767
NSN 5905-00-520-5759
NSN 6645-01-281-7254
NSN 6105-01-641-7015
NSN 6110-00-020-2835
NSN 6240-00-723-3378
NSN 5920-00-291-1379
NSN 2925-01-464-3093
NSN 4140-01-435-6198
NSN 6130-00-676-7023
NSN 5965-00-630-7872