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 6685-01-225-4436
NSN 6610-01-100-3662
NSN 6620-01-268-9693
NSN 2925-00-479-9297
NSN 5998-00-998-1710
NSN 5925-00-189-4524
NSN 5895-01-133-3585
NSN 5950-00-679-9511
NSN 6150-01-139-2147
NSN 5950-01-292-3426
NSN 5999-00-795-2439
NSN 5985-01-482-4866