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 6220-01-328-6308
NSN 5945-00-153-4655
NSN 5950-01-547-5207
NSN 6685-01-449-1451
NSN 6135-01-120-9812
NSN 6650-00-150-6885
NSN 5895-01-309-9020
NSN 7035-00-079-7189
NSN 6685-01-423-4613
NSN 5920-00-081-0537
NSN 5895-00-851-9053
NSN 5935-00-771-9166