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 5855-01-353-3958
NSN 5996-01-542-8611
NSN 5975-01-323-7166
NSN 6110-01-013-9313
NSN 4140-01-451-5521
NSN 6150-01-378-6448
NSN 5998-00-603-9400
NSN 5996-00-781-7490
NSN 6645-01-410-8905
NSN 6240-01-017-7323
NSN 6110-01-157-9341
NSN 6130-01-535-0281