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 4140-00-011-2988
NSN 7035-00-238-3662
NSN 5960-01-175-9880
NSN 6650-01-158-5099
NSN 5999-00-417-9223
NSN 6240-00-152-6289
NSN 6135-01-202-8113
NSN 5935-01-483-1143
NSN 6645-01-249-3258
NSN 6320-01-189-9955
NSN 6645-01-584-0892
NSN 5965-01-168-8180