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 2925-00-772-5611
NSN 6145-01-498-1987
NSN 5999-01-512-6028
NSN 5950-01-164-0327
NSN 6110-00-081-0927
NSN 5905-01-522-1207
NSN 5950-00-736-1208
NSN 6610-01-354-7963
NSN 5999-00-410-1402
NSN 6320-00-004-9158
NSN 6320-01-399-6177
NSN 6240-01-476-7357