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 2925-00-714-3932
NSN 4140-00-468-5342
NSN 6145-00-345-2565
NSN 6240-00-372-4841
NSN 5895-00-916-1728
NSN 5855-00-089-3974
NSN 6150-00-933-7635
NSN 5855-01-087-1417
NSN 6610-01-010-3159
NSN 6220-01-531-4141
NSN 5960-01-466-1994
NSN 5930-00-472-7193