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 5915-01-522-4121
NSN 5950-01-392-9214
NSN 5895-00-518-4954
NSN 6650-01-382-6411
NSN 2925-01-004-5627
NSN 5985-01-022-6386
NSN 5999-00-186-0058
NSN 7035-01-624-8289
NSN 5925-01-155-8674
NSN 6685-00-995-8067
NSN 2925-00-982-0409
NSN 6105-01-395-1033