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 5960-01-498-0572
NSN 5996-01-116-1087
NSN 5925-01-484-9954
NSN 6135-01-646-3039
NSN 6240-00-400-7980
NSN 6240-01-519-8781
NSN 5930-01-288-0727
NSN 6135-01-026-9960
NSN 5965-01-558-7385
NSN 5990-00-011-2994
NSN 5985-01-298-5833
NSN 6130-00-477-7219