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 5950-01-154-6388
NSN 5920-00-144-8031
NSN 6610-01-514-7755
NSN 5915-01-336-0307
NSN 6135-00-603-4859
NSN 6145-01-244-1205
NSN 5935-00-067-0032
NSN 6105-01-401-5361
NSN 5990-01-392-2210
NSN 6145-00-478-0261
NSN 6645-00-081-4298
NSN 5855-01-443-5330