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 6220-01-386-1582
NSN 6145-01-298-3150
NSN 6320-01-612-7035
NSN 6110-00-507-1256
NSN 5996-01-335-3512
NSN 6145-00-754-8372
NSN 5999-01-289-8807
NSN 6110-00-959-7002
NSN 6145-01-415-2658
NSN 5945-01-391-2699
NSN 5930-01-180-2752
NSN 6645-01-112-3242