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 5930-01-458-5551
NSN 5985-01-135-3944
NSN 6240-00-151-7642
NSN 5905-00-157-9278
NSN 6320-00-336-5570
NSN 5965-01-172-5724
NSN 6645-01-440-5500
NSN 6620-01-441-0240
NSN 5950-01-142-1906
NSN 5945-00-722-9695
NSN 6145-01-456-1396
NSN 5920-01-353-8136