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 6610-01-278-9387
NSN 5998-01-320-2044
NSN 6220-00-862-6216
NSN 5945-01-099-0475
NSN 5905-01-239-5051
NSN 5985-00-866-6470
NSN 5975-01-392-0436
NSN 4140-01-517-5101
NSN 5950-00-170-9103
NSN 5910-01-437-9921
NSN 6110-01-116-4251
NSN 5985-00-597-2966