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 6620-01-633-5142
NSN 6105-00-951-9844
NSN 6650-01-399-8552
NSN 6610-01-121-4925
NSN 5999-00-394-7191
NSN 5975-01-271-8041
NSN 5950-00-295-7190
NSN 6685-00-107-8099
NSN 5920-01-406-3462
NSN 5960-00-344-9588
NSN 6110-00-200-8465
NSN 5990-01-386-5561