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 4140-01-123-8801
NSN 5855-01-108-2044
NSN 5855-01-556-2665
NSN 6240-01-269-3146
NSN 6610-01-014-3964
NSN 6130-00-248-3259
NSN 5975-01-254-0161
NSN 5895-00-520-8402
NSN 5855-01-152-8782
NSN 5925-01-322-3048
NSN 5965-01-210-7784
NSN 7035-01-481-2110