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 5990-01-110-8979
NSN 4140-01-097-5229
NSN 6135-01-542-4383
NSN 5975-01-225-2409
NSN 6685-00-549-9784
NSN 6610-01-293-0644
NSN 5975-00-116-3874
NSN 6135-01-438-0228
NSN 5920-00-156-9230
NSN 5905-01-093-6540
NSN 5930-01-507-6139
NSN 6610-01-045-1823