STAUFF · Replacement Elements · inline line
RE-300-S-50-B-NB filter element: specifications & equivalents
The RE-300-S-50-B-NB is a STAUFF inline-line hydraulic filter element, sized 143 × 483 mm OD × length (ID 96.1 mm). Verify against the current manufacturer data sheet before ordering.
Envelope OD × L 143 × 483 mm
Inside diameter 96.1 mm
Line type inline
Partially verified. Fit and grade trace to an official interchange document;
dimensional values are compiled from 0 aftermarket listing(s)
and must be confirmed against the manufacturer housing drawing. Confidence score 0.85.
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 | 143 mm |
| Inside diameter ID | 96.1 mm |
| Length | 483 mm |
| End caps | open-ended cartridge element |
| 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 | 143 mm (5.630 in) |
| Inside diameter | 96.1 mm (3.783 in) |
| Overall length | 483 mm (19.016 in) |
All 143×483 mm interchange elements →
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
|
↔ 1261825 page in verification queue | UFI | partial | STAUFF Filter Interchange lists 1261825 (HYDAC) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 1300R040WHCKB page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 1300R040WHCKB (HYDAC) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 1300R050WHCKB page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 1300 R 050 W/HC /-KB (HYDAC) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 1300R050WHCWKB page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 1300 R 050 W/HC /-W-KB (HYDAC) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ 1300R050WKB page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists 1300 R 050 W /-KB (HYDAC) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ H1300RN3040OV page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists H1300RN3040OV (MAHLE / Filtration Group) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ H1300RN3060OV page in verification queue | Aftermarket | partial | STAUFF Filter Interchange lists H1300RN3060OV (MAHLE / Filtration Group) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
|
↔ RE300B50BNB page in verification queue | STAUFF | partial | STAUFF Filter Interchange lists RE-300-B-50-B-NB (STAUFF) as replaced by RE-300-S-50-B-NB. Envelope dimensions are published; media grade and performance data are not — confirm before substituting in cleanliness-critical circuits. |
| ↔ RE-300-S-50-B-NB | STAUFF | partial | STAUFF Filter Interchange lists RE-300-S-50-B-NB (STAUFF) as replaced by RE-300-S-50-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 RE-300-S-50-B-NB model number is decoded
- RE-300-S-50-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 RE-300-S-50-B-NB filter element?
The published envelope is 143 mm OD × 483 mm length with a 96.1 mm inside diameter (5.630 × 19.016 in × 3.783 in ID). Confirm against the housing drawing before ordering.
What replaces the RE-300-S-50-B-NB filter element?
9 partial match(es) requiring parameter review
How do I read the RE-300-S-50-B-NB part number?
See the designation decoder above: each segment of RE300S50BNB 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 91 catalog element(s) share the 143×483 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.
RE-300-G-03-B RE-300-G-03-B-B1.0 RE-300-G-03-B-B-50-B-402431 RE-300-G-03-B-B6.0 RE-300-G-03-B-NB RE-300-G-03-V RE-300-G-03-V-B6.0 RE-300-G-03-V-NB RE-300-G-05-B RE-300-G-05-B-B1.0
Other models in the Replacement Elements series
All 3832 → AD-030-B-125-B AD-030-B-40-B AD-030-B-60-B AD-030-B-80-B AD-030-E-20-B AD-033-B-40-B AD-033-B-60-B AD-033-B-80-B FE-BL-200 FE-BL-500
Reviewed & verified by the ElementRef engineering desk against STAUFF on 2026-09-27. Read our editorial & correction policy.