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 6220-01-277-0549
NSN 6110-01-193-1803
NSN 5915-01-518-1551
NSN 6320-00-468-8421
NSN 5905-01-525-7027
NSN 6645-00-126-0286
NSN 6105-00-252-0323
NSN 5920-01-032-6471
NSN 5855-01-100-3272
NSN 5975-01-370-5852
NSN 5996-01-067-8303
NSN 6610-00-211-9095