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 6610-01-500-2415
NSN 6685-01-456-5832
NSN 5985-01-481-2578
NSN 5835-01-131-2027
NSN 6150-00-466-9883
NSN 6610-01-555-0842
NSN 6105-01-501-8434
NSN 6620-00-782-0337
NSN 5950-00-448-1578
NSN 6150-00-111-5283
NSN 5990-01-544-4360
NSN 6220-01-261-2488