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 6220-01-252-9531
NSN 6110-01-585-1368
NSN 5950-00-923-7339
NSN 5905-00-536-1056
NSN 6620-00-128-7980
NSN 5895-01-479-8159
NSN 5855-00-631-4565
NSN 6105-00-189-7130
NSN 5975-01-508-4139
NSN 6650-00-820-4577
NSN 6620-00-581-8984
NSN 5960-00-636-4834