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 6110-00-499-8647
NSN 6645-01-520-6563
NSN 6110-01-384-4292
NSN 5950-01-492-6871
NSN 5855-01-003-7102
NSN 5975-01-422-0784
NSN 5895-00-080-2003
NSN 5910-00-420-8367
NSN 6240-01-452-5005
NSN 2925-00-707-6770
NSN 6320-00-116-3658
NSN 6110-01-206-4893