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 5999-01-443-7166
NSN 5965-00-729-6835
NSN 5925-00-729-0578
NSN 5999-01-206-9939
NSN 7035-01-380-6538
NSN 5930-01-361-7866
NSN 5990-00-267-9956
NSN 5950-01-607-4000
NSN 6130-01-322-8507
NSN 5998-01-139-3515
NSN 6620-01-129-2941
NSN 5915-01-612-1871