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 6645-00-021-6408
NSN 6220-00-106-1149
NSN 5985-00-409-7436
NSN 5835-01-399-5820
NSN 6145-01-389-4350
NSN 4140-00-457-2510
NSN 6135-01-643-5809
NSN 6130-01-303-1380
NSN 5930-01-435-8290
NSN 5985-01-371-9355
NSN 5910-00-009-1152
NSN 5910-00-911-0690