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 6150-01-627-3175
NSN 6105-00-038-7518
NSN 5996-00-930-4466
NSN 5945-01-144-7547
NSN 6685-00-503-7318
NSN 6645-01-438-4118
NSN 5855-01-461-8169
NSN 5985-01-085-6288
NSN 5930-01-573-8366
NSN 6105-00-740-7757
NSN 6650-01-350-4079
NSN 6135-00-318-8359