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 4140-01-040-1700
NSN 6105-01-658-6631
NSN 7035-01-106-3476
NSN 6645-01-649-5069
NSN 6240-01-595-6812
NSN 5855-01-391-7077
NSN 5985-01-272-3121
NSN 6620-01-454-8926
NSN 5925-01-561-8058
NSN 6130-01-543-1227
NSN 5960-01-122-7310
NSN 5990-01-027-1869