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 6320-01-039-5891
NSN 5935-01-287-9334
NSN 6130-01-198-2243
NSN 5925-01-345-3653
NSN 5999-01-198-8955
NSN 5996-01-353-8017
NSN 5975-01-243-6831
NSN 2925-01-532-8445
NSN 6220-00-291-3722
NSN 6685-01-139-7388
NSN 6685-01-517-0589
NSN 6105-00-891-9768