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 5960-00-351-4821
NSN 5920-01-163-2491
NSN 5998-01-563-8591
NSN 5990-01-146-1779
NSN 5990-01-370-4785
NSN 5835-01-384-3206
NSN 6220-01-097-2353
NSN 6135-01-630-3158
NSN 6620-01-287-1443
NSN 6650-00-170-5095
NSN 5910-01-138-7925
NSN 5925-01-454-8693