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 6220-01-657-0668
NSN 4140-00-964-8623
NSN 6610-01-291-4173
NSN 5999-01-656-4876
NSN 5985-00-587-1706
NSN 5855-00-361-0167
NSN 6220-00-138-5969
NSN 5915-01-418-0265
NSN 5835-00-269-2232
NSN 6145-01-655-4185
NSN 5920-01-201-9144
NSN 2925-01-142-0981