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 6240-01-612-8976
NSN 5920-01-570-0553
NSN 5965-01-113-9061
NSN 5905-01-532-3511
NSN 6650-01-121-6904
NSN 5915-01-063-5908
NSN 6320-01-648-5538
NSN 5975-00-828-9556
NSN 5920-01-189-0115
NSN 5990-01-183-6478
NSN 5895-01-519-8742
NSN 5930-01-432-2481