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 6320-01-006-6138
NSN 6650-01-642-0367
NSN 5960-01-564-5044
NSN 6110-01-578-7766
NSN 6610-00-350-1091
NSN 6320-00-035-8781
NSN 6220-01-508-1003
NSN 5895-01-159-6217
NSN 5990-00-062-5235
NSN 5996-01-359-5912
NSN 5975-00-406-4753
NSN 4140-00-529-7463