2540-22-616-5611

2590-00-031-7590 2590000317590 000317590

7640-27-031-7590 7640270317590 270317590 is a sheet or plate representing on a plain surface all or part of earth's surface, showing physical, natural, statistical and/or political features, or division. excludes chart; chart, recording instrument; plate, instruction; and sheet, technical.

4720-01-031-7590 4720010317590 010317590 is a length of nonmetallic hose with fittings on one or both ends. for items without fittings, see hose, nonmetallic. excludes hose assembly, air duct; and hose assembly, air duct, air breathing.

5310-14-031-7590 5310140317590 140317590 is 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.)