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 5996-01-393-4690
NSN 5985-01-489-1576
NSN 5855-01-380-9950
NSN 5895-01-441-9448
NSN 5835-01-613-9485
NSN 6220-00-394-5762
NSN 5965-01-080-4021
NSN 5999-01-140-3198
NSN 5855-01-634-0259
NSN 4140-01-213-9199
NSN 5960-01-259-3846
NSN 5996-00-245-6273