Blue Anodized Aluminum Adapter (AN 912), 3/8 Inch Male NPT To 1/8 Inch Female NPT, Bushing

For stepping down a 3/8 inch male NPT port to a 1/8 inch female NPT connection, this adapter matches that exact thread size arrangement. It is an Eaton Aeroquip bushing style adapter, catalog number C1EB14 (also sold as FBM2138).

Eaton's fluid compatibility documentation (linked on the product page) has the specific recommendations for fluids to use with this adapter. It's always best to check that to keep your system running smoothly.

That's the kind of job this fitting handles. The male end threads into your 3/8 NPT port, and the 1/8 female end accepts whatever smaller fitting or instrument you're connecting on the other side. It's an Eaton Aeroquip piece, aluminum body with an anodized finish, so it holds up well against corrosion in hydraulic environments. Just make sure your manifold port is truly 1/8 NPT female and you'll have a solid, leak-free connection.