Color is grey
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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 5835-01-411-7050
NSN 6610-01-604-1744
NSN 5965-01-250-5768
NSN 6610-00-407-4295
NSN 6220-00-777-7156
NSN 6610-01-156-0810
NSN 5915-00-552-9598
NSN 7035-01-374-0005
NSN 6240-01-064-6472
NSN 5985-00-039-5245
NSN 5999-00-016-0244
NSN 5998-01-514-7857