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.)
NSN 5925-01-102-4037
NSN 6130-01-502-5619
NSN 5985-00-952-9348
NSN 2925-01-174-6786
NSN 5855-00-821-7512
NSN 5915-00-823-8334
NSN 5950-00-479-1356
NSN 5835-01-469-6706
NSN 6145-00-596-8447
NSN 2925-01-142-0981
NSN 5960-01-446-1266
NSN 5920-01-053-0986