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 5910-01-362-3564
NSN 5950-01-351-8227
NSN 5960-00-279-1993
NSN 4140-00-269-3189
NSN 6130-01-608-8900
NSN 5910-01-122-9051
NSN 6610-01-464-1870
NSN 5895-00-283-1768
NSN 6645-01-331-5247
NSN 5905-01-170-3601
NSN 6220-01-255-0258
NSN 4140-00-497-3416