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 5895-01-054-3799
NSN 5996-01-154-9821
NSN 5990-01-400-3299
NSN 5915-01-432-2491
NSN 5990-00-277-3763
NSN 5975-00-451-0230
NSN 5950-01-218-4877
NSN 5975-01-461-7744
NSN 5975-01-003-9803
NSN 6650-01-302-7684
NSN 5895-01-324-3365
NSN 5930-00-599-6981