Eaton / Internormen · 01.E / 01.N / Easy-Fit · inline line
01.NL 40.25VG.30.E.P.- filter element: specifications & equivalents
The 01.NL 40.25VG.30.E.P.- is a Eaton / Internormen inline-line hydraulic filter element, built with glass fiber fleece (vg) media, sized 45 × 100 mm OD × length, rated at 20 µm absolute. Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 45 × 100 mm
Filtration rating 20 µm abs.
Media Glass fiber fleece (VG)
Collapse / burst 30 bar
Line type inline
Catalog verified. Parameters extracted from the manufacturer’s electronic
catalog / official interchange document and checked 2026-09-28. Confidence score 0.90.
Specs come from Eaton's product data hub via its site-search API. The µm retention rating follows ISO 16889 (absolute convention), while the model-code fineness grade is nominal — match both before substituting.
Specification table
| Parameter | Value |
|---|---|
| Filter type | inline line |
| Media | Glass fiber fleece (VG) |
| Filtration rating | 20 µm |
| Rating basis | absolute |
| Outside diameter OD | 45 mm |
| Length | 100 mm |
| End caps | open-ended cartridge element |
| Collapse / burst pressure | 30 bar |
| Integral bypass valve | none (housing/valve-dependent) |
| Seal material | Nitrile (Buna-N) |
| Manufacturer part no. | 312542 |
| Source catalog | Eaton: Eaton product data hub via site search API (eaton.com) |
| Last verified | 2026-09-28 |
Sources: Eaton — Eaton product data hub via site search API (eaton.com) — accessed 2026-09-29.
Eaton / Internormen® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Eaton / Internormen distributor.
Dimensions & series range
| Outside diameter | 45 mm (1.772 in) |
| Overall length | 100 mm (3.937 in) |
All 45×100 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| ↔ 0040 DN 025 BN4HC | HYDAC | partial | Eaton's filtration cross-reference lists 0040DN025BN4HC (Hydac) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
|
↔ 0040DN025ON page in verification queue | Aftermarket | partial | Eaton's filtration cross-reference lists 0040DN025ON (Hydac) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
|
↔ 0040DN025ONHC page in verification queue | Aftermarket | partial | Eaton's filtration cross-reference lists 0040DN025ONHC (Hydac) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
|
↔ 20040H20SL page in verification queue | Aftermarket | partial | Eaton's filtration cross-reference lists 2.0040H20SL (Hengst) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
|
↔ 78260945 page in verification queue | UFI | partial | Eaton's filtration cross-reference lists 78260945 (Mahle) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
| ↔ NL-040-E-25-B | STAUFF | partial | STAUFF Filter Interchange lists 01.NL 40.25VG.30.E.P (INTERNORMEN) as replaced by NL-040-E-25-B. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ PI25004DNSMX25 page in verification queue | Aftermarket | partial | Eaton's filtration cross-reference lists PI25004DNSMX25 (Mahle) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
|
↔ R928006648 page in verification queue | Aftermarket | partial | Eaton's filtration cross-reference lists R928006648 (Bosch) as an interchange for 01.NL 40.25VG.30.E.P.-. Envelope cross-reference; verify micron grade, delta-P rating and seal configuration before substituting. |
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 01.NL 40.25VG.30.E.P.- model number is decoded
- 01.NL 40.25VG.30.E.P.-Eaton 01.NL filter element model code (Eaton 01.NL In-Line Filter Element).
- 312542Eaton catalog number (order code) for the same element.
- 25 VGFilter fineness grade: nominal rating and media letter.
- 20 µmISO 16889 multipass retention rating as published by Eaton.
- Glass fiber fleece (VG)Filter media execution.
- 30 barDelta-P resistance class — maximum differential pressure (collapse) rating.
- Nitrile (Buna-N)Seal compound.
- 45 mmOuter diameter.
- 100 mmElement height.
Typical equipment & applications
- Medium-pressure in-line and lubrication circuits
- Spin-on and exchange element replacements
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 01.NL 40.25VG.30.E.P.- filter element?
The published envelope is 45 mm OD × 100 mm length (1.772 × 3.937 in). Confirm against the housing drawing before ordering.
What micron rating does 01.NL 40.25VG.30.E.P.- use?
This element is rated 20 µm absolute. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.
What replaces the 01.NL 40.25VG.30.E.P.- filter element?
8 partial match(es) requiring parameter review
How do I read the 01.NL 40.25VG.30.E.P.- part number?
See the designation decoder above: each segment of 01NL4025VG30EP encodes size, line type, filtration grade and media/collapse execution.
Is a same-envelope aftermarket element always a drop-in replacement?
No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.
How often should a hydraulic return-line element be replaced?
Replace at the housing manufacturer’s recommended differential-pressure setting (commonly signalled by a clogging indicator), or on a time-based service interval when no indicator is fitted — never wait for bypass to open continuously, because unfiltered oil then reaches the valves.
Same-envelope elements from other brands
View full interchange →These 49 catalog element(s) share the 45×100 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
V3.0509-16K8 01.NL 40.100G.30.E.P.- 01.NL 40.10G.30.E.P.- 01.NL 40.10G.30.E.P.- FA. A 01.NL 40.10G.HR.E.P.- 01.NL 40.10VG.30.E.P.- 01.NL 40.10VG.30.E.V.- 01.NL 40.10VG.30.E.V.IS06 01.NL 40.10VG.30.E.V.IS08 01.NL 40.10VG.HR.E.P.-
Other models in the 01.E / 01.N / Easy-Fit series
All 3329 → 01.1910.40G.16.E.O.SON 01.20213.130G.E.O 01.21657.25VG.10.B.N.IS09 01.41542.25VG.16.B.N.IS09 01.AS 180.250G.-.E.T.- 01.AS 180.40G.-.E.T.- 01.AS 180.80G.-.E.T.- 01.AS 220.130G.-.B.-.- 01.AS 220.250G.-.B.-.- 01.AS 220.25G.-.B.-.-
Reviewed & verified by the ElementRef engineering desk against Eaton on 2026-09-28. Read our editorial & correction policy.