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 6150-00-990-2118
NSN 5975-01-520-8029
NSN 5925-01-365-0436
NSN 5998-01-613-5874
NSN 6240-00-364-0850
NSN 5835-01-020-5650
NSN 6110-00-756-9943
NSN 6220-00-615-2168
NSN 5975-00-977-9137
NSN 6685-01-618-3744
NSN 5855-01-494-3713
NSN 6650-01-444-1321