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 6650-01-527-0465
NSN 5950-01-491-1525
NSN 5985-00-864-4015
NSN 5835-00-958-6231
NSN 6650-01-526-1241
NSN 6320-01-422-1212
NSN 6135-00-862-5154
NSN 5960-00-195-6435
NSN 6130-01-120-2984
NSN 6130-01-567-7354
NSN 6240-01-292-7858
NSN 6150-01-105-1764