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 5996-01-383-7018
NSN 5965-01-042-2001
NSN 6620-00-244-0965
NSN 5950-00-169-9565
NSN 7035-01-463-9855
NSN 6650-00-269-5000
NSN 5998-01-622-4653
NSN 7035-00-991-6877
NSN 4140-00-203-4844
NSN 5915-00-057-5804
NSN 5998-01-540-3270
NSN 4140-01-304-5882