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 5975-00-146-1797
NSN 2925-00-236-9986
NSN 2925-00-891-9289
NSN 6610-00-343-5631
NSN 6220-01-444-1889
NSN 5960-01-303-9395
NSN 6110-00-955-0900
NSN 6645-01-510-3496
NSN 6135-01-480-8121
NSN 2925-01-408-6205
NSN 5990-00-093-6794
NSN 6645-01-019-8662