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 6610-01-148-6474
NSN 6135-01-223-3869
NSN 5835-00-284-0882
NSN 5910-00-336-4525
NSN 5975-00-902-6549
NSN 6145-00-112-0459
NSN 5990-01-052-1987
NSN 5950-01-410-8210
NSN 4140-00-045-8117
NSN 5920-00-788-5442
NSN 2925-00-513-6644
NSN 5855-00-408-2611