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 6610-01-528-5750
NSN 7035-00-465-3298
NSN 5915-01-490-2482
NSN 5960-01-406-4136
NSN 5930-01-242-2792
NSN 5855-01-514-9052
NSN 6150-00-114-2785
NSN 6645-00-270-6817
NSN 6130-01-100-2466
NSN 5950-01-379-2640
NSN 5975-00-958-2019
NSN 5855-00-763-2155