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 6685-01-231-2079
NSN 6320-00-098-2858
NSN 4140-01-581-2051
NSN 5895-01-443-9420
NSN 5895-01-654-4604
NSN 5975-01-123-8811
NSN 6610-00-924-2828
NSN 5998-01-088-8138
NSN 5950-01-422-1361
NSN 5895-01-465-6845
NSN 6110-01-364-4590
NSN 5905-01-381-0638