A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. 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 5855-01-225-5855
NSN 5855-01-441-1392
NSN 5975-00-364-6919
NSN 6685-01-529-6990
NSN 6135-00-577-8429
NSN 6220-00-682-8292
NSN 5855-01-284-6373
NSN 5930-01-441-8610
NSN 5925-01-435-4409
NSN 5950-00-813-6759
NSN 5855-00-869-3635
NSN 5950-01-393-3350