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 6240-01-119-3760
NSN 5925-01-284-5270
NSN 5985-01-125-9657
NSN 6610-01-176-3539
NSN 5835-00-419-0575
NSN 5930-01-364-0290
NSN 5960-01-649-1341
NSN 5999-00-027-9476
NSN 5905-00-652-2495
NSN 5895-00-077-5526
NSN 6150-01-251-0440
NSN 5910-01-078-8832