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 5835-00-170-5238
NSN 5835-01-191-3405
NSN 7035-01-395-0757
NSN 6645-01-470-4688
NSN 6320-01-279-0343
NSN 6105-01-348-4148
NSN 6110-00-899-2505
NSN 5990-01-522-6096
NSN 6145-01-494-8591
NSN 5975-00-932-0295
NSN 6650-01-149-1448
NSN 5915-00-553-8755