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 6240-00-204-9355
NSN 6110-00-271-9928
NSN 5999-00-882-8720
NSN 6130-00-181-4422
NSN 6645-01-268-7265
NSN 5996-01-003-7206
NSN 6110-00-172-0200
NSN 4140-01-080-1881
NSN 7035-01-432-4605
NSN 5925-00-162-2799
NSN 5895-01-129-1093
NSN 6150-01-188-7317