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 6610-01-351-4607
NSN 5960-01-173-7956
NSN 6320-01-078-8257
NSN 6135-01-100-3593
NSN 6620-00-553-8854
NSN 6650-01-418-0790
NSN 6320-01-422-1212
NSN 5895-01-523-1608
NSN 5930-01-357-6648
NSN 5910-01-540-1289
NSN 5985-01-500-2258
NSN 5999-00-883-5321