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 5990-01-221-0609
NSN 5920-01-414-6983
NSN 5855-01-480-6386
NSN 5935-01-275-2970
NSN 6240-01-295-1750
NSN 5920-00-233-8690
NSN 6110-01-472-3069
NSN 5960-00-097-7007
NSN 5965-01-370-1891
NSN 5920-01-071-1921
NSN 6620-00-919-6710
NSN 6135-00-027-3914