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 6620-01-247-9170
NSN 5915-01-420-1327
NSN 5996-01-202-8605
NSN 7035-01-086-8095
NSN 5985-01-252-6168
NSN 5925-01-045-0618
NSN 5920-00-727-1452
NSN 4140-00-350-7489
NSN 5996-01-633-6255
NSN 7035-00-897-7567
NSN 5960-01-398-9538
NSN 5960-00-512-9121