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 5985-00-243-4160
NSN 5975-01-119-1463
NSN 6135-01-494-3607
NSN 5985-00-737-4538
NSN 4140-00-320-1482
NSN 5895-01-032-5929
NSN 5999-00-184-5843
NSN 5996-01-487-8782
NSN 5950-00-539-9877
NSN 5910-01-025-6563
NSN 5855-01-528-7287
NSN 5910-01-475-3735