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 6645-01-196-6277
NSN 5965-01-423-8543
NSN 5855-01-658-4510
NSN 5999-01-449-0875
NSN 6645-01-434-2648
NSN 5835-01-170-5537
NSN 6645-00-790-0944
NSN 6130-01-642-5925
NSN 5950-01-657-4245
NSN 6220-01-537-0129
NSN 5965-00-104-3121
NSN 5985-00-678-9978