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 5985-00-790-0210
NSN 5925-00-062-6604
NSN 6320-01-081-7748
NSN 6130-01-594-9810
NSN 4140-01-515-9790
NSN 6685-00-651-5488
NSN 5945-01-167-8498
NSN 6650-00-547-4557
NSN 6685-00-088-8285
NSN 6610-01-380-6374
NSN 6145-01-432-1198
NSN 5990-01-251-7313