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 5999-00-399-7866
NSN 5999-01-311-8879
NSN 5915-00-809-6691
NSN 6685-01-456-4437
NSN 7035-01-263-5463
NSN 4140-01-319-6355
NSN 2925-00-596-9775
NSN 5925-01-098-7829
NSN 5905-00-903-2435
NSN 6110-00-871-6429
NSN 5999-01-277-2965
NSN 5855-01-555-0579