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 6220-01-280-3983
NSN 5925-01-622-6708
NSN 6610-00-216-6538
NSN 5920-01-421-0291
NSN 6685-01-550-6631
NSN 6105-01-217-3092
NSN 6645-01-542-6159
NSN 6650-00-629-8027
NSN 5985-00-221-5566
NSN 7035-01-577-3778
NSN 5996-00-288-1829
NSN 5960-00-941-5013