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 6240-01-623-2413
NSN 6220-01-534-4235
NSN 5996-01-158-2531
NSN 5855-00-951-6483
NSN 5985-00-195-4556
NSN 5930-01-196-3028
NSN 5905-00-077-1823
NSN 6240-00-266-9940
NSN 5935-01-168-8183
NSN 5990-01-025-7466
NSN 6685-01-299-4533
NSN 6610-00-641-3015