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: Nuts of iron or steel
NSN 4140-01-040-1700
NSN 2925-01-511-2667
NSN 5975-00-944-1499
NSN 7035-01-227-2546
NSN 6645-01-362-2587
NSN 5985-00-558-0662
NSN 5905-00-700-3405
NSN 5975-01-324-7474
NSN 6240-00-138-0654
NSN 6110-01-396-2661
NSN 5985-01-508-3988
NSN 6610-01-266-8691