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 5999-01-447-3153
NSN 5960-01-210-0879
NSN 5835-01-111-0969
NSN 6645-01-333-2035
NSN 5855-01-385-8846
NSN 6645-00-982-9516
NSN 7035-01-598-1263
NSN 6610-00-826-7235
NSN 6150-00-293-5293
NSN 5895-01-448-9587
NSN 5999-00-669-8928
NSN 5855-01-057-2200