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 5855-01-386-7323
NSN 6240-01-244-0709
NSN 2925-01-439-4451
NSN 6620-01-554-3987
NSN 6650-01-560-8576
NSN 6645-01-239-8133
NSN 6650-00-590-9073
NSN 6650-01-329-5595
NSN 6685-00-400-8389
NSN 5996-00-145-7802
NSN 5930-01-224-5795
NSN 5855-00-014-5008