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 6650-01-335-9825
NSN 4140-00-306-0886
NSN 5965-01-429-0881
NSN 6320-00-553-8427
NSN 5915-00-679-2415
NSN 6145-01-298-7806
NSN 5930-01-204-8259
NSN 5998-00-810-0186
NSN 5985-01-070-0288
NSN 5996-00-088-2515
NSN 5950-00-201-7921
NSN 6220-00-890-0474