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 5998-01-550-6091
NSN 5910-00-214-9332
NSN 6220-01-411-6919
NSN 6645-01-286-1924
NSN 5990-00-761-3754
NSN 6685-01-443-9723
NSN 5990-01-246-7417
NSN 6130-01-272-5001
NSN 5895-00-185-4543
NSN 6620-00-189-0967
NSN 6130-01-602-8991
NSN 6610-01-423-7481