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 6145-00-490-5497
NSN 5855-01-500-2531
NSN 5999-01-608-3185
NSN 4140-01-323-4279
NSN 6220-01-654-3806
NSN 5996-00-333-5182
NSN 6135-01-577-0811
NSN 5975-01-090-5174
NSN 5835-01-408-7576
NSN 5985-01-640-6466
NSN 5835-01-476-8210
NSN 4140-01-234-8568