Hydac
Hydac 1263779
The Hydac 1263779 is a 20µm optimicron low-press. hydraulic filter element. It measures 5.6" OD x 3.783" ID x 28.4" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Buna-N/Nitrile. Collapse pressure rating is 150 PSID. 1 verified cross-reference is available from aftermarket manufacturers.
Need the Exact OEM Part?
We can source and ship Hydac filters directly.
Want a Verified Alternative?
Get an equivalent filter with the same specs at a better price.
What are the specifications of the Hydac 1263779?
Technical specifications for the Hydac 1263779 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 20µm |
| Media Type | Optimicron low-press. |
| Efficiency (ISO 16889) | β4000 |
| Collapse Rating | 150 PSID |
| Series | R |
| Dimensions | |
| O.D. (inches) | 5.6" |
| O.A.L. (inches) | 28.4" |
| I.D. (inches) | 3.783" |
| Seal Material | Buna-N/Nitrile |
Last verified: February 2026
What replaces the Hydac 1263779?
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 HYDAC 1263779 is designed for use in hydraulic and lubrication filtration systems. With a 20µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. Buna-N/Nitrile seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 150 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 Hydac 1263779?
What are the dimensions of the Hydac 1263779?
What seal material does the Hydac 1263779 use?
Is there a cross-reference for the Hydac 1263779?
What is the collapse pressure rating of the Hydac 1263779?
Need help finding this filter?
We have 1 verified replacement on file. Enter your info and we'll send you the full cross-reference report within 24 hours.
Verified Cross-References
352,000+ verified filter specifications
Fast Response
Quotes and answers within 24 hours
Expert Support
Real filtration specialists, not call centers