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 4140-00-648-3303
NSN 5905-01-581-3591
NSN 6130-00-291-0589
NSN 6620-00-930-5680
NSN 6110-00-369-0508
NSN 5975-01-612-1934
NSN 6135-01-216-7170
NSN 5960-00-003-6631
NSN 5996-01-423-5630
NSN 6645-00-276-7544
NSN 6645-01-438-6986
NSN 5835-00-233-6327