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 6610-00-877-0176
NSN 6610-00-647-3830
NSN 5965-00-775-6496
NSN 7035-01-357-9246
NSN 5950-00-350-8373
NSN 5925-01-442-8589
NSN 5998-00-489-1956
NSN 5950-00-301-4829
NSN 5950-00-155-4749
NSN 5996-01-633-7979
NSN 4140-01-265-8669
NSN 6685-01-516-4092