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 5990-01-234-8646
NSN 5996-01-478-4937
NSN 5835-01-461-8184
NSN 5920-01-329-4571
NSN 5975-01-581-2006
NSN 6110-01-065-0232
NSN 7035-01-606-0874
NSN 7035-01-612-5624
NSN 6110-01-336-6676
NSN 5920-01-198-3602
NSN 6620-01-378-5579
NSN 6105-01-373-1932