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 6110-01-383-2161
NSN 5925-00-411-0843
NSN 5975-01-645-9285
NSN 5985-00-909-8769
NSN 5996-01-373-0147
NSN 5965-00-173-4440
NSN 5915-01-347-0104
NSN 2925-01-418-3296
NSN 6610-01-137-5959
NSN 6135-00-477-8847
NSN 5999-01-401-5322
NSN 6240-01-319-2549