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 6130-00-531-6564
NSN 6645-00-590-8801
NSN 6620-01-189-8153
NSN 6105-01-419-6082
NSN 6610-01-602-5382
NSN 5998-00-189-0761
NSN 5999-01-286-4817
NSN 5996-01-502-6330
NSN 5975-01-205-0548
NSN 5996-01-117-2559
NSN 6105-00-870-4023
NSN 6105-00-530-0656