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 5835-01-431-2178
NSN 5975-01-215-1205
NSN 6105-01-076-2622
NSN 6650-01-343-1708
NSN 6145-00-382-6199
NSN 5999-01-361-8950
NSN 5920-01-345-7145
NSN 6620-00-905-6590
NSN 5965-01-159-0921
NSN 5905-01-437-1480
NSN 6685-01-461-3865
NSN 5990-01-449-7090