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 5975-00-497-9968
NSN 6220-01-632-0405
NSN 5996-00-377-9464
NSN 5990-01-581-5103
NSN 6240-00-079-0112
NSN 6150-00-431-6606
NSN 5835-01-055-6063
NSN 5965-01-043-5295
NSN 6240-00-702-1223
NSN 5855-00-548-4742
NSN 5950-00-830-3198
NSN 5950-01-551-9841