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 6645-01-433-6999
NSN 6240-00-919-9186
NSN 4140-01-316-0493
NSN 6240-00-984-3354
NSN 6685-01-263-1512
NSN 6685-00-058-9526
NSN 5925-01-399-6777
NSN 5950-01-310-8570
NSN 6110-01-423-8273
NSN 6610-01-433-2219
NSN 6650-01-633-9147
NSN 5996-01-605-7650