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 5895-01-442-3199
NSN 5975-00-351-7822
NSN 6135-00-180-5125
NSN 5965-01-643-5191
NSN 6135-01-275-1363
NSN 5855-01-531-3097
NSN 5998-00-086-0117
NSN 5950-00-014-0569
NSN 6105-00-456-0920
NSN 5895-01-566-5504
NSN 5999-01-168-7792
NSN 5975-01-634-0678