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 4140-00-361-4691
NSN 5965-01-378-1393
NSN 6320-01-326-1316
NSN 5990-01-485-0260
NSN 5998-00-626-8719
NSN 5925-00-341-5875
NSN 6150-00-900-4423
NSN 6645-01-357-7750
NSN 6105-01-090-1166
NSN 6150-01-540-6132
NSN 5910-01-629-3709
NSN 6610-01-242-9674