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 6650-00-450-0787
NSN 6645-00-641-3202
NSN 5965-01-378-7335
NSN 6110-00-954-0718
NSN 6685-01-564-6631
NSN 6130-01-010-3603
NSN 5950-01-515-0172
NSN 6645-00-401-5563
NSN 6135-01-397-2170
NSN 5855-01-380-6186
NSN 5930-00-382-7716
NSN 6150-01-381-3638