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 5998-01-487-4769
NSN 5998-00-248-6943
NSN 7035-01-263-0154
NSN 6240-00-115-8575
NSN 6620-01-519-7234
NSN 5945-01-114-3277
NSN 5960-01-116-2092
NSN 6110-01-378-3484
NSN 6620-01-147-5615
NSN 6110-00-318-6053
NSN 5965-01-051-3727
NSN 6135-01-091-6021