STAUFF · Replacement Elements · inline line
RN-075-B-125-B-NB filter element: specifications & equivalents
The RN-075-B-125-B-NB is a STAUFF inline-line hydraulic filter element, sized 70 × 306 mm OD × length (ID 41 mm). Verify against the current manufacturer data sheet before ordering.
Micron rating, media type, collapse pressure and seal material are not printed in the STAUFF interchange listing and are pending extraction from STAUFF product data sheets. Verify against the current STAUFF catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Outside diameter OD | 70 mm |
| Inside diameter ID | 41 mm |
| Length | 306 mm |
| Integral bypass valve | none (housing/valve-dependent) |
| Source catalog | STAUFF: STAUFF Filter Interchange online database (filterinterchange.com) |
| Last verified | 2026-09-27 |
Sources: STAUFF — STAUFF Filter Interchange online database (filterinterchange.com) — accessed 2026-09-27.
STAUFF® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized STAUFF distributor.
Dimensions & series range
| Outside diameter | 70 mm (2.756 in) |
| Inside diameter | 41 mm (1.614 in) |
| Overall length | 306 mm (12.047 in) |
All 70×306 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 01E320130G16EP page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 01E320130G16EP (INTERNORMEN) as replaced by RN-075-B-125-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the RN-075-B-125-B-NB model number is decoded
- RN-075-B-125-B-NBSTAUFF replacement element part number per the STAUFF Filter Interchange database.
Typical equipment & applications
- Replacement element for OEM hydraulic filter housings
Selection pitfalls — read before you substitute
- “10 µm nominal” and “12 µm at β1000” can describe the very same media — one is reported at β≥200, the other at β≥1000 per ISO 16889. Compare ratings at the same Beta test point, not just the printed micron number.
- Nitrile (NBR) seals are standard for mineral hydraulic oil but fail early in some phosphate-ester fluids and at sustained high temperature; verify seal compound against the fluid data sheet (fluorocarbon/Viton executions may be required).
- End-cap geometry and the number/position of O-rings block interchange even when OD and length match — visually compare end caps before fitting, especially with aftermarket cartridges.
Frequently asked questions
What are the dimensions of the RN-075-B-125-B-NB filter element?
What replaces the RN-075-B-125-B-NB filter element?
How do I read the RN-075-B-125-B-NB part number?
Is a same-envelope aftermarket element always a drop-in replacement?
How often should a hydraulic return-line element be replaced?
Same-envelope elements from other brands
View full interchange →These 3 catalog element(s) share the 70×306 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
Other models in the Replacement Elements series
All 3832 →Reviewed & verified by the ElementRef engineering desk against STAUFF on 2026-09-27. Read our editorial & correction policy.