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 4140-01-450-6405
NSN 5965-01-564-8023
NSN 6135-01-574-6577
NSN 5905-01-282-8943
NSN 6645-01-022-6247
NSN 5965-00-236-0016
NSN 5895-01-204-5358
NSN 6645-00-020-2787
NSN 6650-01-498-2633
NSN 6650-01-118-5257
NSN 6130-01-250-2822
NSN 5960-00-944-1113