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 4140-01-289-4811
NSN 6135-01-615-0812
NSN 5835-00-987-9341
NSN 6650-00-738-4498
NSN 4140-00-726-3551
NSN 5950-01-191-2241
NSN 6685-01-307-7465
NSN 5996-01-012-1924
NSN 4140-01-660-0543
NSN 5975-00-138-9057
NSN 6130-00-726-9628
NSN 5925-01-661-1854