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 5905-01-431-5721
NSN 6650-01-258-5871
NSN 5990-00-288-1820
NSN 6110-01-446-0992
NSN 5935-01-014-5545
NSN 6240-01-241-5209
NSN 5835-01-595-4099
NSN 7035-01-066-5676
NSN 5855-01-251-7721
NSN 6620-01-103-7508
NSN 2925-01-172-9209
NSN 5945-00-020-8971