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 6645-01-570-3215
NSN 6135-00-351-8606
NSN 6220-01-130-0774
NSN 6610-01-415-1623
NSN 6145-00-466-4068
NSN 6110-01-316-6414
NSN 5965-00-153-5216
NSN 6645-01-462-2101
NSN 5910-00-309-3450
NSN 5920-01-396-1147
NSN 5905-01-465-8458
NSN 6240-01-251-2462