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 5996-01-336-1479
NSN 5998-01-169-0649
NSN 5960-01-231-3484
NSN 5935-00-243-7611
NSN 5998-00-060-5925
NSN 5965-01-168-8180
NSN 6620-00-244-8020
NSN 5855-01-068-3683
NSN 5920-01-267-2795
NSN 6685-01-443-9723
NSN 6220-01-511-3423
NSN 5835-01-332-2867