A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 4140-01-276-1903
NSN 5985-00-596-7263
NSN 6135-01-223-3869
NSN 5920-01-581-3703
NSN 5950-01-037-8859
NSN 5965-01-165-3002
NSN 6650-00-313-4172
NSN 5925-00-954-1724
NSN 5990-00-436-9008
NSN 5930-01-449-0621
NSN 6610-00-419-3154
NSN 5925-01-290-2355