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 6105-01-278-1375
NSN 5990-00-206-3753
NSN 5996-01-420-6231
NSN 2925-00-041-0439
NSN 5930-01-298-7464
NSN 6105-01-363-5281
NSN 6150-00-950-9330
NSN 6685-01-607-1743
NSN 5920-01-640-7457
NSN 6610-01-116-2527
NSN 5985-00-351-0184
NSN 6220-01-204-3575