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 6620-01-304-4747
NSN 5998-01-142-4734
NSN 5895-01-198-7499
NSN 5855-00-058-1293
NSN 6240-01-613-0089
NSN 5985-01-026-9810
NSN 5920-01-388-3543
NSN 6135-01-421-3189
NSN 5990-01-013-3205
NSN 5999-01-561-4689
NSN 5950-01-530-6465
NSN 5985-01-051-4677