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 5998-00-248-7221
NSN 4140-01-196-5984
NSN 6145-01-487-5589
NSN 5905-01-655-0793
NSN 6220-00-500-4813
NSN 4140-00-010-7955
NSN 6620-01-287-1443
NSN 5975-01-340-9400
NSN 5990-00-740-0249
NSN 5975-01-259-4180
NSN 6220-01-611-9292
NSN 5895-01-085-4318