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 6620-01-292-5072
NSN 6220-01-481-2603
NSN 6135-00-170-8819
NSN 6320-01-648-5538
NSN 6135-01-066-6904
NSN 5990-01-632-0969
NSN 5920-01-380-3196
NSN 5990-00-419-0236
NSN 5975-01-508-4456
NSN 5895-01-074-7902
NSN 5990-01-571-7468
NSN 7035-01-281-3642