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 6240-00-361-1421
NSN 4140-01-641-1855
NSN 5915-00-986-7413
NSN 5855-01-553-1162
NSN 5910-01-531-2114
NSN 5960-01-082-4491
NSN 6135-01-507-4346
NSN 7035-01-080-8742
NSN 7035-01-568-5351
NSN 5935-01-403-2844
NSN 6645-01-076-4655
NSN 7035-00-631-3782