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 4140-01-520-9714
NSN 6645-00-922-0886
NSN 6320-01-021-6633
NSN 5998-01-619-6693
NSN 5998-01-246-3657
NSN 6320-00-393-0138
NSN 5945-01-645-5151
NSN 7035-01-381-7622
NSN 6650-01-645-7892
NSN 5925-01-648-1410
NSN 5985-01-231-9759
NSN 5950-01-429-0877