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 5990-01-024-9659
NSN 5905-01-343-0275
NSN 5855-01-020-7982
NSN 6620-01-189-8153
NSN 6645-01-569-5729
NSN 5975-01-093-3890
NSN 6220-01-441-2889
NSN 5915-00-192-3109
NSN 5935-01-176-9122
NSN 6240-00-299-9819
NSN 5990-01-218-1821
NSN 6240-01-213-0143