Valve and pipe assembly

The item under consideration is
described as a pressure reducing valve and pipe assembly, part number
H28728-C1100-EX. The assembly functions as a pressure reducing valve that opens
and closes as the flow of exhaust increases or decreases inside the muffler of
an automobile. The assembly is constructed of stainless steel and the main
components of the assembly consist of a housing, a gate, a short length pipe, a
shaft and a spring. 

Subheading HS: 8481.10.

Source: https://rulings.cbp.gov/index.asp,  August 22, 2017 (N288739)