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 5920-01-372-0281
NSN 5998-00-837-4305
NSN 6620-01-608-6474
NSN 5985-00-167-7898
NSN 5930-01-364-0290
NSN 5950-01-113-5257
NSN 6130-01-634-0603
NSN 6130-00-993-6814
NSN 5910-01-595-3920
NSN 5945-01-483-1316
NSN 5925-00-035-8469
NSN 5855-01-254-3110