When a Hydraulic Fitting Is Obsolete or Non-Standard
Hydraulic systems fail in awkward ways: a cracked adapter on old machinery, a fitting that converts two standards no supplier carries, or a connector the OEM no longer makes. With the line down, you can't wait weeks. EKINSUN machines hydraulic adapters and fittings built for the working pressure, to spec or from the broken one you have.
Tell us the fitting on each end and the system pressure, or send the old part — we reproduce it in the right steel and seal type.
Hydraulic Fittings We Machine
Seal / thread types
Forms
Built for Pressure & Sealing
| Concern | How we handle it |
|---|---|
| Working pressure | Material and wall section chosen for the rated pressure; steel for high-pressure lines |
| Seal geometry | 37° cone (JIC), face O-ring (ORFS), O-ring boss (SAE), taper (NPT/BSPT) machined precisely |
| Material | Carbon/alloy steel (often zinc-plated) or 316 stainless for corrosion/marine |
| Bore | Sized to avoid restricting flow |
Simpler thread conversion (air, water, fuel)? See thread adapters. Whole part obsolete? We reproduce from a sample and reverse engineer it.
Pressure-critical note. Hydraulic fittings are safety items — confirm the working pressure and standard with us so we specify the right material and seal. We make a compatible fitting to the original's form, fit and function, without implying affiliation with the original manufacturer.
Frequently Asked Questions
Yes — machined from carbon/alloy steel or 316 stainless with the correct wall section and sealing geometry for the working pressure. Tell us the pressure and the fittings on each end.
JIC 37° flare, ORFS, SAE ORB, BSPP, BSPT, NPT and metric — male or female, straight, elbow, tee, bulkhead and swivel, including conversions between them.
Yes — send the old fitting (even damaged) and we measure the threads, bore, cone and seal faces, rebuild the drawing free, then machine a compatible replacement. No part number or CAD needed.
Yes — e.g. JIC to ORFS, BSPP to JIC, NPT to SAE ORB. We machine the correct sealing feature on each end so both sides seal as designed.
From single pieces and prototypes up to small/medium runs. No tooling cost on machined fittings, so a one-off repair fitting is welcome.
Get a Hydraulic Adapter Quoted
Tell us each end + the pressure. Engineers reply in 24h.