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 5910-01-530-8776
NSN 5925-01-432-0149
NSN 5965-01-465-4370
NSN 6320-01-150-5378
NSN 6145-00-267-0853
NSN 6650-00-774-7078
NSN 6145-01-467-2681
NSN 6620-01-168-8450
NSN 6650-01-156-8173
NSN 5996-01-389-1092
NSN 6610-01-539-9084
NSN 5999-00-952-5000