Steel Reusable 1 Wire Braid Reduced Bore Two-Piece Fitting, 3/8-18 Male NPT, -06 Hose, Straight

Designed for hydraulic applications, this steel fitting should provide a reliable seal when properly installed with compatible hoses.

Reduced bore fittings do pass slightly less flow than full bore versions at the same hose size. For most standard hydraulic circuits running -06 hose, the difference won't cause problems. Where it matters more is in high-flow, low-pressure-drop applications where every bit of line efficiency counts. If your system isn't particularly sensitive to minor flow restriction, this fitting will do the job fine.

Single wire braid hose is exactly what this fitting is built around. The -06 hose size and the one wire braid construction are matched to work together, so you're not going to need a heavier hose to get a solid seal. Just make sure your hose matches that -06 designation and you're good to go.