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 6650-01-084-9726
NSN 5985-01-124-0072
NSN 6620-01-643-1483
NSN 5855-00-885-8452
NSN 5905-01-337-6958
NSN 5915-01-642-9250
NSN 5996-00-114-0021
NSN 6150-01-087-1262
NSN 5985-01-546-6594
NSN 5905-01-275-8971
NSN 5945-01-086-4948
NSN 6150-00-996-7668