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 4140-01-319-0459
NSN 6645-01-258-9272
NSN 6650-01-441-3142
NSN 5960-01-025-9388
NSN 5855-01-023-3727
NSN 5915-00-959-5454
NSN 5950-01-298-3382
NSN 5990-01-533-1347
NSN 6650-00-299-9681
NSN 6610-00-834-0713
NSN 5965-00-096-7370
NSN 5965-01-589-3968