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 5998-01-028-1051
NSN 6150-01-310-9706
NSN 6240-01-486-8317
NSN 5996-01-469-6165
NSN 6145-01-598-9912
NSN 5920-00-008-1636
NSN 6620-01-154-4209
NSN 5910-00-175-4311
NSN 5960-00-175-7620
NSN 5996-00-351-2369
NSN 5855-01-174-2463
NSN 5965-01-487-4479