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 5996-01-387-6123
NSN 6685-01-644-3491
NSN 5930-01-626-2558
NSN 5905-00-771-0862
NSN 6135-00-660-8654
NSN 6105-01-491-5001
NSN 5935-01-574-6087
NSN 5950-01-497-9464
NSN 6220-00-541-8515
NSN 5998-01-549-1759
NSN 5996-01-615-6331
NSN 5855-00-861-0006