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 5925-01-254-5905
NSN 5960-01-170-2258
NSN 6130-01-475-3723
NSN 5990-00-130-7293
NSN 6135-00-681-2702
NSN 5925-01-573-7439
NSN 5925-00-410-4822
NSN 6645-01-196-6277
NSN 5965-01-549-3467
NSN 5915-00-368-4564
NSN 5855-01-225-3472
NSN 5999-01-381-2457