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 5960-01-454-7064
NSN 5930-01-451-1043
NSN 4140-00-894-1793
NSN 6320-01-192-0332
NSN 5930-01-126-5135
NSN 5925-01-441-6892
NSN 6650-01-660-3151
NSN 5895-00-250-0020
NSN 6685-01-198-5776
NSN 6220-01-027-1294
NSN 5910-01-283-9584
NSN 5895-01-450-4604