Other Metal Valves & Pipe Fittings

NAICS 332912 covers fluid power valves and hose fittings specifically designed for hydraulic or pneumatic circuits, while 332996 covers fabricated pipe and pipe fittings made by forming processes. NAICS 332919 captures the remainder — valves and fittings that don't fit those narrower definitions, such as solenoid valves, needle valves, and general-purpose couplings. The HTS classification, however, is determined independently of NAICS and turns on the product's construction and function.

Material test reports (MTRs) are not a CBP customs requirement per se, but they are routinely demanded by end-users in oil and gas, power, and chemical sectors to verify compliance with ASTM, ASME, or MSS standards. Importers should obtain MTRs from the manufacturer before shipment, as retroactive documentation is difficult to secure and can delay project delivery.