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 6220-01-212-9016
NSN 5950-00-266-8937
NSN 5945-00-925-9992
NSN 5985-00-175-8662
NSN 5925-01-193-8369
NSN 5996-00-115-2932
NSN 5905-01-447-2378
NSN 5855-00-436-3852
NSN 5895-00-582-1128
NSN 6110-01-290-9380
NSN 6240-00-006-3725
NSN 5960-01-218-2858