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 6610-01-555-8364
NSN 5999-00-332-4465
NSN 5925-00-242-2583
NSN 6150-00-161-2480
NSN 6220-00-061-4140
NSN 6135-01-627-6921
NSN 5930-01-357-3121
NSN 6110-00-185-2021
NSN 6240-01-421-5671
NSN 5990-01-411-5930
NSN 6220-01-458-6592
NSN 6650-01-331-5243