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 5935-01-499-1968
NSN 4140-00-971-6400
NSN 5985-01-224-5081
NSN 6145-01-168-1070
NSN 5855-01-546-9423
NSN 5996-01-036-5639
NSN 6150-01-265-2881
NSN 5950-01-256-4927
NSN 5925-01-657-3520
NSN 7035-01-024-9511
NSN 5975-01-582-2867
NSN 6650-01-604-6246