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 5998-01-023-8873
NSN 6130-01-485-5022
NSN 7035-01-121-5905
NSN 5996-01-633-7979
NSN 5895-01-261-9617
NSN 6110-01-487-6339
NSN 5925-01-153-7493
NSN 5950-01-149-8058
NSN 5950-01-129-2342
NSN 5999-01-577-5246
NSN 5915-01-316-0429
NSN 4140-01-189-7899