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 5999-01-532-5223
NSN 5920-00-543-1266
NSN 6145-01-406-5051
NSN 6130-01-089-4587
NSN 6610-01-254-4196
NSN 5915-01-050-5727
NSN 6130-00-784-1051
NSN 5920-00-549-2203
NSN 6135-00-583-3966
NSN 5905-01-163-5727
NSN 6320-01-294-7161
NSN 5935-01-040-9441