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 4140-01-167-7574
NSN 5965-00-711-6419
NSN 7035-01-506-2143
NSN 5985-01-068-4393
NSN 5920-01-152-1949
NSN 6110-01-538-8213
NSN 6645-00-432-3420
NSN 5905-01-390-7253
NSN 6240-01-305-3416
NSN 7035-01-461-7742
NSN 5930-01-503-1784
NSN 5990-00-081-3357