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Internormen

Internormen 311249-40G

The Internormen 311249-40G is a 40µm glass fiber hydraulic filter element. It measures 17.866" OD x 11.19" ID x 12.28" long. Filtration efficiency is rated at β1000 per ISO 16889. Seals are Nitrile (Buna-N), rated for -13°F to 250°F. Collapse pressure rating is 250 PSID. 1 verified cross-reference is available from aftermarket manufacturers.

40µmGlass FiberNitrile (Buna-N)

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Part Number311249-40G
ManufacturerInternormen
CategoryHydraulic

What are the specifications of the Internormen 311249-40G?

Technical specifications for the Internormen 311249-40G filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.

SpecificationValue
Performance
Micron Rating40µm
Media TypeGlass Fiber
Efficiency (ISO 16889)β1000
Collapse Rating250 PSID
Operating Temperature-13°F to 250°F
Dimensions
O.D. (inches)17.866"
O.A.L. (inches)12.28"
I.D. (inches)11.19"
Seal MaterialNitrile (Buna-N)

Last verified: February 2026

What replaces the Internormen 311249-40G?

1 verified replacement available from Hy-Pro

All cross-references are reviewed for dimensional and performance compatibility. Enter your info below to receive the full cross-reference report.

Application & Compatibility

The INTERNORMEN 311249-40G 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. Nitrile (Buna-N) seals provide compatibility with standard petroleum-based fluids and mineral oils.

The 250 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.

Frequently Asked Questions

What micron rating is the Internormen 311249-40G?

The Internormen 311249-40G has a 40µm micron rating with glass fiber filter media, rated at β1000 per ISO 16889.

What are the dimensions of the Internormen 311249-40G?

The Internormen 311249-40G measures 17.866" OD, 11.19" ID, 12.28" overall length.

What seal material does the Internormen 311249-40G use?

The Internormen 311249-40G uses Nitrile (Buna-N) seals, rated for -13°F to 250°F.

Is there a cross-reference for the Internormen 311249-40G?

Yes. There is 1 verified cross-reference for the Internormen 311249-40G from manufacturers including Hy-Pro. Contact VerifiedFilters for specific part numbers and availability.

What is the collapse pressure rating of the Internormen 311249-40G?

The Internormen 311249-40G has a collapse pressure rating of 250 PSID. This indicates the maximum differential pressure the element can withstand without structural failure.

What is the operating temperature range for the Internormen 311249-40G?

The Internormen 311249-40G is rated for -13°F to 250°F, determined by its Nitrile (Buna-N) seals.

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