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 5950-01-278-9057
NSN 6650-01-337-5309
NSN 5910-00-203-5856
NSN 6645-00-936-9111
NSN 5855-00-247-7219
NSN 6620-01-367-2597
NSN 6145-01-409-1685
NSN 5965-01-003-2641
NSN 6145-01-567-2387
NSN 6135-01-579-8864
NSN 5895-01-300-4465
NSN 5920-01-101-4410