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 5905-01-610-4511
NSN 5996-01-552-8516
NSN 4140-00-069-5154
NSN 5975-01-631-7552
NSN 5855-01-364-1005
NSN 4140-00-236-3239
NSN 5965-01-520-6219
NSN 5855-00-797-8217
NSN 5990-00-402-5616
NSN 6320-01-648-5538
NSN 6150-01-006-2278
NSN 2925-01-560-0517