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 6645-00-327-4005
NSN 5910-01-423-8643
NSN 5998-01-333-1137
NSN 6145-01-028-3803
NSN 2925-01-084-3347
NSN 5895-01-157-9273
NSN 5975-01-258-9289
NSN 5915-01-519-2878
NSN 5855-01-302-5493
NSN 5996-01-305-8812
NSN 6610-00-176-5486
NSN 2925-01-554-1474