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 5920-00-819-3518
NSN 5990-01-465-9235
NSN 5950-01-091-0056
NSN 5915-00-081-3406
NSN 5965-00-791-0964
NSN 6650-01-413-3825
NSN 4140-01-020-9926
NSN 5905-01-472-1692
NSN 6150-01-626-6442
NSN 5935-00-914-1823
NSN 6135-01-447-0950
NSN 5999-01-075-1987