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 5985-01-584-3770
NSN 5855-01-083-9053
NSN 6650-01-364-1313
NSN 5985-01-618-4559
NSN 5960-00-423-7842
NSN 6220-01-144-7175
NSN 5895-01-399-7914
NSN 5960-01-449-1310
NSN 6650-00-339-5458
NSN 6145-00-785-4112
NSN 5950-01-459-7249
NSN 5925-01-320-2767