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 6645-01-354-7624
NSN 6320-01-213-3974
NSN 6650-01-393-4152
NSN 5945-01-406-2330
NSN 6620-00-764-9570
NSN 6685-01-089-8141
NSN 5910-00-370-2471
NSN 7035-01-319-7066
NSN 6620-00-974-7595
NSN 6220-01-441-1271
NSN 5950-01-419-4534
NSN 5996-01-088-2260