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 6110-01-519-9131
NSN 5998-01-391-9732
NSN 5990-00-471-9767
NSN 5905-00-288-1907
NSN 5975-00-129-6056
NSN 6645-01-310-7348
NSN 6105-01-054-1397
NSN 2925-00-120-9302
NSN 5835-00-479-0464
NSN 5999-01-516-4103
NSN 5905-01-449-1291
NSN 6105-01-044-5907