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 6145-01-563-0981
NSN 5975-01-326-6821
NSN 5965-01-286-6548
NSN 5925-01-643-3574
NSN 6620-00-450-6990
NSN 5985-01-654-8942
NSN 6145-00-915-0134
NSN 5920-01-357-7165
NSN 5998-01-392-1027
NSN 6105-00-831-3552
NSN 5925-00-969-3090
NSN 6645-01-576-9896