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: Nuts of iron or steel
NSN 4140-00-518-7561
NSN 6145-01-430-2784
NSN 6220-01-190-0627
NSN 5855-00-688-9954
NSN 6240-01-013-8895
NSN 6645-01-030-4554
NSN 6105-00-775-6072
NSN 6645-00-658-7838
NSN 6150-01-053-0520
NSN 6130-00-227-2124
NSN 5835-01-090-0784
NSN 2925-01-400-2286