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 4140-00-552-7370
NSN 5965-01-464-9885
NSN 6220-01-549-9939
NSN 5930-01-458-3721
NSN 5895-00-227-4752
NSN 6620-01-201-4177
NSN 5895-00-026-1749
NSN 5910-01-515-5987
NSN 5855-01-203-4719
NSN 5999-00-507-2098
NSN 6145-01-275-0533
NSN 6150-00-020-4079