ARGO-HYTOS · Hydraulic Filters · return line

RFT-103-UD-N3-KM-101 filter element: specifications & equivalents

Q: What micron rating does RFT-103-UD-N3-KM-101 use?

This element is rated 30 µm (nominal class). Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

The RFT-103-UD-N3-KM-101 is a ARGO-HYTOS return-line hydraulic filter element, rated at 30 µm class. Verify against the current manufacturer data sheet before ordering.

Filtration rating 30 µm nom.

Line type return

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 0.88.

Nominal pressure, bypass setting and rated flow are taken from the ARGO-HYTOS product portal. Verify port configuration and element compatibility against the current ARGO-HYTOS data sheet before ordering.

Specification table

Parameter	Value
Filter type	return line
Filtration rating	30 µm
Rating basis	nominal
Rated flow	109 L/min
Integral bypass valve	opens at 1.5 bar
Manufacturer part no.	34695100
Source catalog	ARGO-HYTOS: ARGO-HYTOS product portal (portal.argo-hytos.com)
Last verified	2026-09-28

Sources: ARGO-HYTOS — ARGO-HYTOS product portal (portal.argo-hytos.com) — accessed 2026-09-28.

ARGO-HYTOS® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized ARGO-HYTOS distributor.

Cross references & equivalents

No catalog-verified cross references yet. This model is in the manual verification queue — request a verified equivalent.

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 RFT-103-UD-N3-KM-101 model number is decoded

RFT-103-UD-N3-KM-101ARGO-HYTOS return filter assembly part number (Return Filter) per the official product portal.
30 µmPublished filter fineness (nominal rating as printed by ARGO-HYTOS).
109 l/minRated flow of the filter assembly.
10 barNominal pressure rating of the filter assembly.
1.5 barBypass valve opening pressure.
P3.0620-51Replacement filter element for this assembly.
L1.0503-03Matching ventilating (breather) filter for this assembly.

Typical equipment & applications

Tank-top and in-line return filtration
Hydraulic power units and mobile machinery

Selection pitfalls — read before you substitute

A return-line element is not a pressure-line element: return cartridges (BN4HC low-collapse) tolerate roughly 20 bar differential, while BH4HC pressure executions are rated to 210 bar. Installing a low-collapse element in a pressure housing can rupture the media on cold-start spikes.
This execution carries an integral bypass valve (opens at 1.5 bar). The same envelope also exists without it, relying on the housing valve. Mixing the two strategies changes cold-start protection — match what was installed originally.
“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 micron rating does RFT-103-UD-N3-KM-101 use?

This element is rated 30 µm (nominal class). Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

What replaces the RFT-103-UD-N3-KM-101 filter element?

Cross references are being verified for this model — use the inquiry form and the engineering desk will confirm equivalents.

How do I read the RFT-103-UD-N3-KM-101 part number?

See the designation decoder above: each segment of AHRFT103UDN3KM101 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.

Other models in the Hydraulic Filters series

All 767 →

AS 010-00K 100 µm AS 025-01K 100 µm AS 025-12S 200 µm AS 025-14K 100 µm AS 039-18S AS 040-01K 100 µm AS 040-71K 100 µm AS 060-01K 100 µm AS 060-04K8 100 µm AS 060-91S 100 µm

Reviewed & verified by the ElementRef engineering desk against ARGO-HYTOS on 2026-09-28. Read our editorial & correction policy.