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 5998-01-504-0000
NSN 6135-00-900-2139
NSN 6320-01-029-4220
NSN 5920-01-142-1836
NSN 5999-00-151-9955
NSN 6620-01-278-8028
NSN 5925-00-069-2442
NSN 5905-01-396-7689
NSN 5910-01-633-9963
NSN 5999-01-534-7193
NSN 6220-01-288-0416
NSN 6650-01-003-9355