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Specs & tolerances
Sizes, tolerances, and lead times.
Everything an engineer or buyer needs to check before sending a print, in plain numbers.
| OD × wall | Typical use |
|---|---|
| ¼″ × .035″ | Pilot lines, small-bore circuits |
| ⅜″ × .035″ | Light hydraulic circuits |
| ⅜″ × .049″ | Standard medium-pressure lines |
| ⅜″ × .065″ | Higher-pressure ⅜″ lines |
| ½″ × .049″ | Main supply and return lines |
| ½″ × .065″ | High-pressure ½″ lines |
| ¾″ × .065″ | Larger supply and return lines |
- Tolerance
- ±.030″ standard. Your print's callouts take priority.
- Standard lead time
- 2–4 weeks depending on order size.
- Expedite
- As fast as 1 week, including shipping. Orders needed in under 2 weeks may carry an expedite fee.
- Order size
- 2-piece prototype minimum. Capacity up to 10,000 tubes per month.
- End type
- JIC 37° flare to SAE J514. Nuts and sleeves supplied and installed.
- Part length
- 2.5″ to 20 ft overall.
- Material
- Seamless low-carbon steel tube, SAE J524, zinc-aluminum coated. Chrome VI-free.
- Packaging
- Both ends capped, each part labeled, bundled for transit.
- What to send us
- PDF or DXF drawing, a clear photo with dimensions, or a physical sample tube.
| Tube OD | Centerline bend radius (CLR) | Min. straight between bends* |
|---|---|---|
| ¼″ | .625″, 1.250″ | Send print |
| ⅜″ | .750″, .9375″, 1.125″ | ≈ 1.5625″ |
| ½″ | 1.000″, 1.500″ | ≈ 2.125″ |
| ¾″ | 1.500″ | Send print |
*Center to center. Actual minimums depend on the part geometry. Overall part length: 2.5″ to 20 ft.
How each part is checked
Every part is checked before it ships:
- Flares measured with dial calipers.
- Bend angles checked with an angle finder.
- Segment lengths checked against your print.
Our standard tolerance is ±.030″ unless your print calls out something different.
Not on the list?
If your size isn't listed, send the print anyway. We'll tell you straight away whether we can run it.
Have a print? Get a straight answer.
Reply within one business day. Pricing and lead time, or a clear no.