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 5920-01-010-4855
NSN 6620-01-259-5944
NSN 5915-00-008-7148
NSN 6150-01-322-3371
NSN 5855-01-503-5484
NSN 2925-00-233-5644
NSN 6220-00-030-2448
NSN 5985-01-409-2568
NSN 6135-00-016-0071
NSN 6145-00-700-7910
NSN 5999-00-222-0910
NSN 5945-01-550-6402