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 5960-01-411-5899
NSN 5915-00-269-4463
NSN 6685-00-610-1882
NSN 5915-01-346-7866
NSN 5925-00-587-1342
NSN 5999-00-951-5177
NSN 5965-01-388-3492
NSN 6320-01-406-6098
NSN 5835-01-034-5206
NSN 5855-01-359-5727
NSN 5960-00-617-9312
NSN 5915-01-260-6453