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 5985-01-513-8464
NSN 6645-01-204-5629
NSN 6105-00-527-8571
NSN 6130-01-313-9718
NSN 5945-00-383-5356
NSN 6150-00-166-9044
NSN 5945-01-322-5561
NSN 5999-00-949-0265
NSN 5960-00-860-7709
NSN 5990-00-283-1324
NSN 5925-00-336-9150
NSN 5910-00-916-8071