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 6645-00-445-8143
NSN 4140-01-253-1860
NSN 5998-00-221-2543
NSN 6320-01-207-9038
NSN 5985-01-024-6587
NSN 6220-00-833-3904
NSN 5975-00-990-1708
NSN 5910-01-619-0985
NSN 5835-01-645-2892
NSN 5855-01-118-6001
NSN 5910-00-323-0607
NSN 4140-01-149-9066