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 5998-01-656-2881
NSN 5945-01-285-8037
NSN 5990-01-540-1619
NSN 5895-00-121-3366
NSN 5835-00-145-8926
NSN 5975-00-364-6919
NSN 5915-01-250-2451
NSN 6135-00-145-8884
NSN 5895-00-169-6079
NSN 5855-00-482-9876
NSN 5950-01-408-5989
NSN 6645-01-460-4339