Konami Part #111747600000 "TOP BUSHING" in the SDVX Nemsys generation cabinet's Volume Assembly.
Acetal bushing, self lubricating. See [https://www.oilesglobal.com/america/en/products/oiles-80.html its product page] for details.

Where applicable, suitable replacements from other manufacturers that have the same dimensions and material composition are included in the known vendors section. These products are functional equivalents though they are not OEM.