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 6610-01-581-3692
NSN 6650-01-084-7377
NSN 6685-01-372-6991
NSN 6650-01-142-1688
NSN 5990-00-948-1469
NSN 5910-00-163-1360
NSN 5960-01-125-2356
NSN 6685-01-004-0708
NSN 5915-00-816-9056
NSN 6105-01-504-6348
NSN 5996-00-823-8487
NSN 6135-01-554-4281