1680-01-480-2982

5998-01-450-2780 5998014502780 014502780 is a grouping of two or more different types of electrical/electronic components mounted on a common mounting. it may include an assembly of electrical/electronic components mounted on multiple printed wiring board(s) mounted back to back, stacked, and the like. the item is generally a component of a subassembly and cannot be assigned a more definite item name. excludes items which may be identified as a subassembly. for an assembly of electrical/electronic components mounted on a single printed wiring board, see circuit card asseembly. do not use if a more specific name applies.

4710-14-450-2780 4710144502780 144502780 is a straight, hollow product, welded or seamless, of round, square, or any other cross section and continuous periphery, which does not conform in cross sectional dimensions to recognized pipe standards, or those in tables 1 through 10, appendix c, fiig a004a. it is designed to convey fluids, gasses, and/or semisolids. it may be rolled into coils for ease in handling. for items designed to join a tube or tube fitting to another tube, pipe, or hose or fitting, see adapter (as modified); coupling (as modified); or nipple (as modified). excludes tube, bent (as modified); pipe, metallic; spacer, sleeve; metal bar (hollow); and items with fittings, except end protectors.