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 6240-00-234-5781
NSN 5950-01-648-4745
NSN 6645-01-222-9680
NSN 6220-01-266-2341
NSN 5895-00-265-6229
NSN 5925-01-472-4642
NSN 6620-01-420-8666
NSN 5998-00-438-9219
NSN 5935-01-245-7758
NSN 5975-00-020-3271
NSN 5855-01-083-9053
NSN 6130-00-952-6029