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 5998-00-248-7472
NSN 5999-01-143-0388
NSN 5975-01-384-4895
NSN 5975-01-554-7187
NSN 5985-01-607-0291
NSN 6645-00-474-5689
NSN 6650-00-614-1711
NSN 6610-01-300-8383
NSN 5905-00-043-0853
NSN 6620-01-259-5944
NSN 2925-01-170-1089
NSN 5998-01-459-4247