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 6130-01-463-2773
NSN 6645-01-350-3138
NSN 6130-01-283-4075
NSN 4140-00-078-9357
NSN 5925-00-823-6138
NSN 6645-01-238-2718
NSN 6145-01-634-0388
NSN 6645-00-766-7935
NSN 7035-01-113-1424
NSN 5990-00-644-3365
NSN 7035-01-268-0933
NSN 5985-01-303-5308