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 4140-00-289-4334
NSN 2925-01-201-3043
NSN 5990-01-633-9503
NSN 5975-01-020-5987
NSN 5915-01-106-2606
NSN 5925-00-179-8327
NSN 6110-01-357-7952
NSN 6240-00-929-8574
NSN 6645-01-595-1160
NSN 5905-01-621-3411
NSN 5925-01-026-9649
NSN 5855-00-149-0766