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 6240-01-103-3081
NSN 5915-01-027-1407
NSN 6240-00-179-5731
NSN 6220-01-482-0365
NSN 5910-00-471-5558
NSN 6150-00-268-3659
NSN 5925-01-236-6722
NSN 5930-00-012-2015
NSN 6240-01-396-8962
NSN 6110-01-435-6375
NSN 5925-00-279-1353
NSN 6135-01-351-2690