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 5999-01-508-0218
NSN 6620-00-079-0311
NSN 6130-00-905-5618
NSN 5920-01-500-1880
NSN 6145-00-249-6641
NSN 6145-00-252-1899
NSN 5855-00-532-0025
NSN 5925-01-452-3287
NSN 6645-01-490-0325
NSN 5990-01-193-0487
NSN 5975-00-566-4232
NSN 6135-01-417-6539