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 6240-01-029-9525
NSN 6110-01-604-6864
NSN 5910-01-254-2799
NSN 6610-00-862-5901
NSN 5910-01-157-9362
NSN 6110-01-029-3403
NSN 6610-01-058-2366
NSN 5945-01-036-5384
NSN 5895-01-420-3439
NSN 6220-00-255-5652
NSN 6645-01-407-8326
NSN 5999-01-595-9556