Head markings indented at 120.0 degrees
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 6240-00-079-7852
NSN 5998-01-463-7273
NSN 5996-00-609-7206
NSN 5895-00-113-7209
NSN 5895-01-373-1560
NSN 5975-00-489-6175
NSN 5945-00-725-3676
NSN 6620-01-586-8237
NSN 5965-00-217-2476
NSN 6135-00-351-8606
NSN 5935-01-142-1045
NSN 5910-01-452-4524