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 4140-01-549-4809
NSN 5975-00-486-0577
NSN 5975-01-465-5957
NSN 5996-01-506-7585
NSN 6220-01-629-0190
NSN 5835-01-184-3659
NSN 5915-00-989-2939
NSN 5910-00-737-8234
NSN 6320-00-725-0754
NSN 6145-01-197-6921
NSN 6685-01-336-7947
NSN 6220-01-154-5436