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 5965-01-381-2998
NSN 6685-01-344-9389
NSN 5925-00-852-7809
NSN 5950-01-447-4401
NSN 5835-01-156-5622
NSN 5950-00-467-9318
NSN 5960-01-324-3974
NSN 5925-00-756-0462
NSN 5915-01-326-1470
NSN 5925-00-038-6147
NSN 6110-01-177-9411
NSN 5990-00-351-5479