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 6620-01-561-4392
NSN 6610-01-583-9635
NSN 6650-01-334-9410
NSN 6240-01-268-2223
NSN 6685-01-441-9637
NSN 6610-01-589-5146
NSN 5999-00-672-3418
NSN 6620-00-153-0982
NSN 6650-01-152-9425
NSN 5950-01-439-1116
NSN 6135-01-633-2066
NSN 7035-01-573-6595