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 4140-01-220-4377
NSN 5975-01-397-7218
NSN 6610-01-406-6696
NSN 6105-00-740-7757
NSN 5996-01-046-2799
NSN 6220-01-660-5690
NSN 6620-01-476-7355
NSN 5945-01-449-2594
NSN 6645-01-390-6520
NSN 5910-00-808-3223
NSN 5915-01-212-4492
NSN 5895-01-329-5831