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 5998-01-434-3591
NSN 4140-01-510-8707
NSN 5915-01-144-1602
NSN 5999-01-210-9124
NSN 6610-00-181-7544
NSN 5985-01-650-6882
NSN 5915-01-318-1735
NSN 6105-01-415-4135
NSN 6240-01-424-4529
NSN 5950-01-359-1997
NSN 6650-01-463-8405
NSN 5999-00-592-7570