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 6135-00-100-8890
NSN 5998-00-871-3304
NSN 6685-00-793-1098
NSN 6240-01-156-8428
NSN 2925-01-058-1718
NSN 5985-01-259-9849
NSN 6320-01-161-6640
NSN 6110-01-422-0557
NSN 6320-01-310-8068
NSN 5950-01-026-1833
NSN 5960-00-331-7365
NSN 5895-01-411-1237