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 6220-00-428-5943
NSN 5990-01-334-6416
NSN 7035-00-981-7216
NSN 6135-01-222-0703
NSN 6150-01-317-7184
NSN 5960-00-009-2771
NSN 5910-01-150-1826
NSN 5855-00-138-2386
NSN 5925-01-421-2632
NSN 5975-01-152-2635
NSN 5975-00-467-8777
NSN 5925-00-990-8818