Color black
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 5920-00-518-4452
NSN 5915-00-259-3772
NSN 5975-01-376-5355
NSN 5920-01-629-3612
NSN 5975-00-286-8506
NSN 6645-01-576-6733
NSN 5996-01-144-1561
NSN 6135-01-056-4609
NSN 6685-00-754-4111
NSN 5990-01-361-1620
NSN 4140-01-221-7636
NSN 5835-01-412-6901