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 6320-01-393-7022
NSN 5975-01-410-8360
NSN 5835-00-807-5632
NSN 6135-01-156-4627
NSN 5998-01-042-9427
NSN 6240-01-177-3305
NSN 5990-00-435-9400
NSN 5910-01-200-0328
NSN 5965-00-898-1356
NSN 6240-01-449-0300
NSN 6650-00-952-4500
NSN 2925-00-491-3549