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 6145-00-917-2721
NSN 7035-01-508-6447
NSN 6150-01-400-4211
NSN 6645-01-648-2115
NSN 6320-01-425-1417
NSN 4140-01-514-2319
NSN 5965-01-599-1863
NSN 5895-01-538-5924
NSN 4140-00-935-5360
NSN 6610-01-003-9763
NSN 5915-01-506-0550
NSN 5945-01-276-8076