A nut, flat on top and bottom, having 4 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6220-01-517-7032
NSN 5990-01-024-9659
NSN 6105-01-514-8167
NSN 5990-00-481-0787
NSN 5996-00-218-1123
NSN 5935-01-250-3908
NSN 5930-00-730-6623
NSN 6110-01-223-9956
NSN 6650-01-454-5175
NSN 5985-01-320-2532
NSN 2925-00-780-5502
NSN 6685-01-513-3737