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 5999-00-468-4150
NSN 6645-00-810-7229
NSN 5950-01-616-9588
NSN 5910-00-308-9733
NSN 2925-00-782-1498
NSN 5925-00-597-1558
NSN 4140-01-460-8662
NSN 5925-01-439-1364
NSN 6610-00-661-1797
NSN 5945-00-471-2248
NSN 5835-00-477-3162
NSN 5920-01-035-7713