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 5895-01-193-8884
NSN 5950-00-828-8912
NSN 5960-01-641-5493
NSN 6320-01-651-7476
NSN 5965-01-440-9039
NSN 6685-01-505-1335
NSN 5915-01-549-1506
NSN 6650-01-335-6669
NSN 5975-01-376-0191
NSN 6620-00-851-1487
NSN 5835-01-350-9701
NSN 5985-00-092-8740