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 6645-01-044-6376
NSN 5996-01-020-4484
NSN 6135-01-391-8539
NSN 5895-00-038-7408
NSN 5920-00-886-7896
NSN 4140-01-029-8252
NSN 4140-01-023-8846
NSN 5935-00-348-6621
NSN 6150-00-421-0103
NSN 6685-01-070-6341
NSN 5915-01-053-2956
NSN 5960-01-460-7620