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 5930-01-233-8601
NSN 5960-01-155-1962
NSN 5855-01-463-7372
NSN 5960-00-090-2991
NSN 7035-00-513-9764
NSN 6240-00-225-5128
NSN 4140-01-172-2331
NSN 5960-01-605-9921
NSN 6645-01-328-6886
NSN 5965-01-170-5705
NSN 6685-01-265-7228
NSN 6240-00-646-6931