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 6135-01-540-2403
NSN 5910-01-290-4803
NSN 5915-00-707-2297
NSN 6220-01-522-9885
NSN 6240-01-012-2706
NSN 5950-00-943-7438
NSN 4140-01-198-5652
NSN 5935-00-859-0452
NSN 5905-01-290-1201
NSN 5895-01-111-1223
NSN 5999-01-144-9810
NSN 6130-01-218-4710