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 6240-01-166-4517
NSN 5999-01-401-5322
NSN 5935-01-590-7882
NSN 4140-01-364-1104
NSN 5960-01-283-3467
NSN 6145-01-511-8277
NSN 5835-01-632-6627
NSN 6620-01-364-2103
NSN 6610-00-211-3475
NSN 6650-01-459-0571
NSN 5920-00-102-3792
NSN 6220-00-629-9271