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 6320-01-611-4918
NSN 5996-01-359-0057
NSN 6240-01-318-0870
NSN 6150-01-197-7716
NSN 6135-00-871-3646
NSN 5920-01-155-1128
NSN 5965-00-876-2378
NSN 6685-00-281-2840
NSN 6105-01-522-0699
NSN 5895-00-605-8696
NSN 5996-01-310-8411
NSN 5998-01-608-4192