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 6650-00-299-9681
NSN 5990-01-633-9503
NSN 5915-01-054-0064
NSN 5999-01-573-8371
NSN 5930-01-334-0224
NSN 6130-01-464-4286
NSN 5915-01-029-2665
NSN 5920-01-460-9579
NSN 5999-00-906-4683
NSN 6610-01-188-8163
NSN 5990-01-081-3845
NSN 5905-01-256-0006