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 4140-01-424-1612
NSN 5950-00-533-8057
NSN 5985-00-108-8481
NSN 6105-01-437-5032
NSN 5910-00-173-1295
NSN 2925-01-137-4062
NSN 6130-01-207-1879
NSN 5905-01-650-1253
NSN 6150-00-753-3950
NSN 6685-01-032-7516
NSN 6105-01-656-6348
NSN 2925-01-596-9448