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 6150-00-891-7922
NSN 5930-01-421-1538
NSN 6150-00-868-5599
NSN 5835-01-242-9806
NSN 6110-01-400-4207
NSN 6685-01-358-7054
NSN 6135-00-112-8637
NSN 5835-01-237-8486
NSN 5999-00-896-9933
NSN 6220-01-653-6479
NSN 5965-01-464-3372
NSN 5965-01-525-7513