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 5945-01-578-1188
NSN 5960-00-114-4916
NSN 5985-01-655-1940
NSN 6645-01-436-7381
NSN 6150-01-008-7001
NSN 6645-01-493-2620
NSN 6135-01-193-8154
NSN 5895-00-578-8424
NSN 5835-01-426-6573
NSN 5920-01-330-8789
NSN 5855-01-481-3906
NSN 6620-01-451-3742