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 5999-00-842-5419
NSN 5835-01-632-6627
NSN 6110-01-441-1623
NSN 6620-01-542-9999
NSN 2925-00-149-0760
NSN 5996-00-630-5651
NSN 6220-01-149-4177
NSN 6610-01-188-1550
NSN 6145-01-310-8597
NSN 5930-01-270-3941
NSN 6220-01-416-6324
NSN 2925-01-357-2512