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 5985-01-632-0738
NSN 5905-01-652-0135
NSN 5855-01-655-4035
NSN 5935-01-435-5204
NSN 5990-01-493-4039
NSN 6620-01-488-6772
NSN 6650-01-049-0384
NSN 6240-01-494-0514
NSN 5975-01-094-5237
NSN 5950-00-952-1569
NSN 6685-01-534-3725
NSN 6110-01-204-5657