Summit City Precision Machining LLC  260-459-7031

A fitting that looks right on the bench can still leak on a hydraulic manifold or a gas panel, and the cause is usually a few thousandths of an inch in the wrong place. Precision machined fittings tend to fail for three reasons we see repeatedly in our shop: the thread form does not match the mating port, the sealing face has the wrong geometry or finish, or the leak test was never defined tightly enough to catch the problem before shipping. This guide explains how we think a