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 4140-01-283-2287
NSN 6150-01-039-0561
NSN 6240-00-397-3864
NSN 5910-01-490-3366
NSN 6645-00-434-8793
NSN 5945-01-289-5207
NSN 5999-00-841-6392
NSN 5998-00-201-9829
NSN 6135-00-495-6862
NSN 4140-01-234-9999
NSN 6620-01-598-2271
NSN 5965-01-512-9925