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 5920-01-641-4080
NSN 5910-00-399-0734
NSN 6620-01-602-7524
NSN 6645-01-633-1852
NSN 5999-00-156-4424
NSN 6610-01-236-2510
NSN 2925-00-678-5502
NSN 7035-01-459-8268
NSN 2925-01-411-8002
NSN 5965-00-263-6436
NSN 5930-01-453-0533
NSN 5950-01-648-2677