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OEM Hydraulic Fittings: What Information Do We Need From Buyers?

Nov 12, 2026

For an OEM hydraulic fitting, we usually need some basic information before checking the price and production process.

The most useful information is:

Drawing or sample – A drawing is preferred. If there is no drawing, a sample, part number or clear photos can also be used for an initial check.

Material – Carbon steel, stainless steel, brass, or the material grade required by the customer.

Thread – Thread type and size, such as JIC, BSP, NPT, Metric, ORFS or DIN.

Surface treatment – For example, zinc plating or other specified treatment.

Quantity – Current order quantity and, if possible, estimated annual demand.

Application – For special fittings, information such as working pressure, temperature and application can be useful.

Inspection requirements – Any special dimensional inspection, testing or certificate requirements should be advised before production.

For an existing fitting, a sample is often helpful, especially when some dimensions are not shown on the drawing.

We understand that the information is not always complete at the beginning of a project. If some details are missing, we can first check the available information and then confirm the remaining points with the customer.

For us, the main thing is to make sure the drawing, material, thread, surface treatment and quantity are clear before production starts.

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