Parts (Except Cylinders) for Calendering & Other Rolling Machines (Excluding Metals & Glass)

Parts that are identifiable as solely or principally used with calendering or rolling machines (excluding those for metals or glass) should classify under 842099 rather than a general parts heading. The GRI and HTS Section XVI notes give priority to specific parts headings over general ones. If a part is common to multiple machine types and cannot be identified as principally used with a calender, the general machinery parts heading may apply — a determination best confirmed with a CBP binding ruling for high-value items.

Yes — if a part is physically identical but used in both textile and paper calendering machines, classification depends on the principal use in the US market at the time of importation. If the importer can demonstrate the parts are sold and used predominantly for one machine type, that line applies. For genuinely dual-use parts, the NESOI line (8420999000) is the appropriate fallback.