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 5998-01-268-2300
NSN 6150-00-898-0547
NSN 6150-01-029-4118
NSN 5998-01-370-2418
NSN 5920-00-802-0666
NSN 6135-01-265-1384
NSN 5999-01-581-5317
NSN 6685-00-794-9187
NSN 5905-01-444-3891
NSN 6645-00-491-3611
NSN 5945-01-323-7171
NSN 6320-01-512-2031