0.440 in.W hex across flats
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: Parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 5990-01-328-8225
NSN 5950-00-439-5764
NSN 6645-00-179-5134
NSN 5910-01-549-1932
NSN 5965-00-372-2537
NSN 6610-00-164-1510
NSN 6130-01-360-6403
NSN 5965-00-988-8770
NSN 6645-01-462-2101
NSN 6220-01-055-7423
NSN 6240-00-482-9188
NSN 4140-01-461-8985