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 5985-01-199-1524
NSN 5915-01-106-2606
NSN 5975-00-226-8429
NSN 6130-01-574-8968
NSN 2925-01-233-8545
NSN 5990-00-412-4411
NSN 6320-00-925-0558
NSN 5975-00-033-7805
NSN 2925-00-574-8796
NSN 5910-01-625-7956
NSN 5855-00-125-0780
NSN 6135-01-180-9611