Internormen
Internormen 306728
Industrial filter element
Internormen 306728 specifications
The Internormen 306728 is a 25µm 304 ss wire filter element. It measures 5.91" OD x 3.5" ID x 8.07" long. Seals are BUNA, rated for -13°F to 250°F. Collapse pressure rating is 305 PSID. 1 verified cross-reference is available from aftermarket manufacturers. Specifications verified. Last reviewed: February 2026
Physical fit
- Outer Diameter (O.D.)
- 5.91"Verified via cross-reference
- Inner Diameter (I.D.)
- 3.5"Verified via cross-reference
- Overall Length
- 8.07"Verified via cross-reference
- Micron Rating
- 25µmVerified via cross-reference
- Seal Material
- BUNAVerified via cross-reference
- Connection / Thread
- Not yet verified from an OEM source
Performance: Internormen published values
These are Internormen's own published numbers. Performance specs differ by brand and are never inherited across cross-references.
- Media Type
- 304 SS WIRE
- Collapse Rating
- 305 PSID
- Flow Direction
- OUTSIDE-IN
- Operating Temperature
- -13°F to 250°F
What replaces the Internormen 306728?
1 published cross-reference on file. Select to expand.
What replaces the Internormen 306728?
1 published cross-reference on file. Select to expand.
A cross-reference confirms dimensional fit and micron rating, not performance equivalence. Beta ratio, collapse rating, media, and service life can differ between brands.
Published cross-references
| Part Number | Manufacturer | Match |
|---|---|---|
| HP388L8-25WB | Hy-Pro | Verified |
Application & Compatibility
The INTERNORMEN 306728 is designed for use in hydraulic and lubrication filtration systems. With a 25µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. BUNA seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 305 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 306728?
What are the dimensions of the Internormen 306728?
What seal material does the Internormen 306728 use?
Is there a cross-reference for the Internormen 306728?
What is the collapse pressure rating of the Internormen 306728?
What is the operating temperature range for the Internormen 306728?
How this entry is verified
Every specification on this page names its source: manufacturer documents first, distributor catalogs second, decoded part-number patterns labeled as such. When a value has not been verified from an OEM source, the cell says so. Cross-references are fit claims, never performance claims.
Request a quote for the Internormen 306728
Tell us where to send it and we'll get you pricing and availability within 24 hours. Leave a number and we'll call you back within the hour.
Verified Cross-References
520,000+ verified cross-references on file
Fast Response
Quotes and answers within 24 hours
Expert Support
Real filtration specialists, not call centers