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 6610-01-541-0880
NSN 5945-01-108-6946
NSN 5895-01-595-9386
NSN 6650-01-450-6335
NSN 6145-01-651-9555
NSN 5835-00-930-8500
NSN 5998-00-470-7018
NSN 5925-01-132-9120
NSN 6650-01-289-0524
NSN 6645-01-105-9757
NSN 5915-01-064-9246
NSN 5950-01-420-4468