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 4140-01-320-6751
NSN 5950-01-300-5865
NSN 5920-00-004-4005
NSN 5960-01-184-3436
NSN 5925-00-536-7651
NSN 6320-01-384-7079
NSN 6135-01-142-6456
NSN 6610-00-902-7505
NSN 6610-00-473-0548
NSN 6620-00-189-0967
NSN 5999-01-087-1807
NSN 6240-01-622-7355