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 6620-01-555-5218
NSN 6240-00-456-2578
NSN 6650-01-359-8537
NSN 6220-00-100-6276
NSN 5960-01-224-0414
NSN 5965-00-782-8920
NSN 6645-01-147-5579
NSN 2925-01-004-5627
NSN 5985-00-421-8208
NSN 6110-01-147-9272
NSN 6105-01-230-9746
NSN 5975-00-052-4591