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 5915-01-088-4439
NSN 5950-01-137-1797
NSN 6220-01-449-1239
NSN 6650-01-037-1948
NSN 5905-01-644-4896
NSN 5985-01-521-4345
NSN 4140-01-499-8906
NSN 6650-01-008-6080
NSN 6220-01-303-4577
NSN 5996-01-498-4336
NSN 6685-01-270-0251
NSN 5930-00-361-2597