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 6320-01-643-0850
NSN 6145-00-862-7069
NSN 5895-00-891-4498
NSN 6105-01-571-7371
NSN 5910-01-596-2780
NSN 6610-00-126-3021
NSN 5975-01-633-3486
NSN 5950-01-297-9664
NSN 6220-01-025-4535
NSN 5999-01-325-6292
NSN 5920-00-802-0666
NSN 6620-01-401-5356