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 6320-00-456-2092
NSN 6610-01-529-8529
NSN 6610-00-251-7073
NSN 6105-01-031-2992
NSN 5910-01-097-4177
NSN 5945-01-003-9426
NSN 5996-00-898-8024
NSN 6145-01-576-7848
NSN 6240-01-218-5187
NSN 5935-00-699-8815
NSN 5835-01-176-5422
NSN 5835-01-259-0859