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 5935-01-580-6502
NSN 5965-01-261-6073
NSN 6220-00-751-9709
NSN 5925-01-492-4782
NSN 6240-01-506-3911
NSN 5999-01-155-1541
NSN 5920-00-012-2000
NSN 5990-01-463-2279
NSN 5910-01-441-8640
NSN 5855-00-494-9581
NSN 6685-00-469-9323
NSN 6320-00-857-4073