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 5895-00-211-7193
NSN 5925-00-205-2767
NSN 5990-01-553-6859
NSN 6150-00-856-1424
NSN 6620-00-405-4621
NSN 6145-01-422-1830
NSN 5996-00-270-0340
NSN 6685-01-157-9340
NSN 6150-01-380-1387
NSN 6105-01-401-5361
NSN 5930-00-832-6939
NSN 6685-01-231-5472