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 5985-00-004-2764
NSN 2925-01-218-5556
NSN 5960-01-648-1872
NSN 5925-01-584-5331
NSN 6135-01-571-7488
NSN 5945-01-038-5615
NSN 6105-01-580-0557
NSN 5920-01-378-7269
NSN 5855-00-494-9581
NSN 5960-00-289-6591
NSN 6220-00-055-9917
NSN 6220-01-600-7855