A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 4140-00-931-8500
NSN 2925-00-021-9580
NSN 5925-00-509-5184
NSN 6145-01-359-9481
NSN 6320-01-492-1976
NSN 5950-01-608-5667
NSN 6320-00-994-0179
NSN 6320-01-512-2031
NSN 6220-01-495-1918
NSN 2925-01-147-6688
NSN 6220-01-236-0233
NSN 5998-00-432-7342