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 6620-00-643-1402
NSN 5960-00-430-3781
NSN 5905-00-290-8098
NSN 5996-00-256-3915
NSN 6240-00-406-8141
NSN 6240-01-163-8795
NSN 6320-01-504-3948
NSN 5835-00-529-6307
NSN 6135-01-142-2417
NSN 6145-01-397-6210
NSN 6240-01-291-0504
NSN 6145-01-461-2750