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 5985-01-643-5450
NSN 5975-01-304-3199
NSN 6240-00-246-5060
NSN 2925-01-255-4875
NSN 6650-00-016-9426
NSN 5930-01-355-6893
NSN 5960-00-067-3954
NSN 5920-01-067-4897
NSN 6110-01-038-9455
NSN 5960-01-409-1917
NSN 6220-00-127-0837
NSN 5975-01-105-9020