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 5990-00-133-7734
NSN 6110-01-164-3721
NSN 6130-01-359-5032
NSN 4140-01-426-8428
NSN 5910-00-555-3003
NSN 6645-00-172-8718
NSN 5930-01-572-4372
NSN 6150-01-299-8007
NSN 6220-01-124-4904
NSN 5925-01-124-2441
NSN 6145-01-463-8229
NSN 4140-01-579-8352