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.)
NSN 5925-00-833-6028
NSN 5910-00-951-6281
NSN 5950-01-459-7961
NSN 4140-01-099-6657
NSN 5960-01-007-2225
NSN 5930-01-197-8761
NSN 6645-00-938-2173
NSN 5960-00-338-9164
NSN 6135-01-544-8463
NSN 6105-00-777-7278
NSN 6130-00-128-0034
NSN 5910-01-249-9517