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 5915-01-278-9176
NSN 5965-01-354-2029
NSN 5920-01-020-4090
NSN 6130-01-512-9499
NSN 5975-01-397-6779
NSN 6105-00-839-8336
NSN 5855-01-261-5495
NSN 6105-01-516-4795
NSN 5998-01-660-0768
NSN 6135-01-441-7922
NSN 4140-01-313-3733
NSN 6130-01-651-9180