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 6645-00-274-5670
NSN 5998-00-187-8962
NSN 6135-00-100-8890
NSN 6685-00-361-0332
NSN 6320-01-583-6809
NSN 5990-01-360-0711
NSN 5920-01-654-7419
NSN 5996-00-703-1004
NSN 5996-00-854-2960
NSN 5975-01-459-6751
NSN 5990-01-223-9414
NSN 5915-01-104-0481