Internormen
The Internormen 308557 is a 40µm 304 ss wire hydraulic filter element. It measures 6.06" OD x 3.55" ID x 15.71" long. Seals are VITON, rated for -13°F to 250°F. Collapse pressure rating is 145 PSID. 1 verified cross-reference is available from aftermarket manufacturers.
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Technical specifications for the Internormen 308557 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Micron Rating | 40µm |
| Media Type | 304 SS WIRE |
| O.D. (inches) | 6.06" |
| O.A.L. (inches) | 15.71" |
| Collapse Rating | 145 PSID |
| I.D. (inches) | 3.55" |
| Seal Material | VITON |
| Flow Direction | OUTSIDE-IN |
| Operating Temperature | -13°F to 250°F |
Last verified: February 2026
1 verified cross-reference available from Hy-Pro. All cross-references are reviewed for dimensional and performance compatibility.
| Manufacturer | Part Number | Confidence |
|---|---|---|
| Hy-Pro | Request part number | Verified |
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Last verified: February 2026
The INTERNORMEN 308557 is designed for use in hydraulic and lubrication filtration systems. With a 40µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. VITON seals provide compatibility with petroleum-based fluids, synthetic fluids, phosphate esters, and water-glycol mixtures.
The 145 PSID collapse rating indicates the maximum differential pressure this element can withstand during cold starts or bypass conditions without structural failure. Ensure your system's maximum differential pressure does not exceed this rating.
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