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 5990-00-253-0261
NSN 5960-01-345-7489
NSN 6685-01-298-3368
NSN 2925-01-633-4048
NSN 6135-00-268-8492
NSN 6240-01-499-9150
NSN 5920-00-373-3636
NSN 6135-01-392-6166
NSN 6220-01-387-3266
NSN 6145-00-493-4089
NSN 5935-00-185-1833
NSN 5950-00-840-5420