MP Filtri · CS / CW Spin-on · return line

CS050A03AP01 filter element: specifications & equivalents

Q: What micron rating does CS050A03AP01 use?

This element is rated 3 µm absolute. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

The CS050A03AP01 is a MP Filtri return-line hydraulic filter element, built with inorganic microfiber media, rated at 3 µm absolute. Verify against the current manufacturer data sheet before ordering.

Filtration rating 3 µm abs.

Media Inorganic microfiber

Line type return

Identity-only record. No engineering parameters for this part number are available from any public catalog we can cite, and no cross reference resolves to a verified page yet. This page exists so the number can be found and linked — do not order a substitute without confirming dimensions, ratings and seals against the housing. The engineering desk can verify equivalents on request.

Ordering code and media options are taken from the MP Filtri Spin-on catalogue MPS booklet (CAT_HF_SPIN-ON_MPS_EN p.6); multipass Beta(c)=1000 ratings for size 150 are quoted from the US GRF/UFM replacement-element table. US MP Filtri literature lists this cartridge under the CSG prefix and interchange lists also quote leading-zero-dropped and execution-slot-dropped short forms; all are indexed as aliases of this page. The catalogues print overall MPS filter dimensions but no cartridge envelope dimensions, thread or collapse rating; verify against the current MP Filtri data sheet before ordering.

Specification table

Parameter	Value
Filter type	return line
Media	Inorganic microfiber
Filtration rating	3 µm
Rating basis	absolute
End caps	spin-on cartridge
Integral bypass valve	none (housing/valve-dependent)
Seal material	Nitrile (Buna-N)
Source catalog	MP Filtri: MP Filtri Spin-on Filters catalogue, MPS family booklet (CAT_HF_SPIN-ON_MPS_EN) MP Filtri: MP Filtri GRF / UFM mobile filtration units brochure (US edition, CAT_GRF_UFM__US)
Last verified	2026-09-28

Sources: MP Filtri — MP Filtri Spin-on Filters catalogue, MPS family booklet (CAT_HF_SPIN-ON_MPS_EN) · MP Filtri — MP Filtri GRF / UFM mobile filtration units brochure (US edition, CAT_GRF_UFM__US) — accessed 2026-10-17.

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

Full chart: MP Filtri cross reference chart →

How the CS050A03AP01 model number is decoded

CS050CS replacement cartridge series and size for the MPS050 spin-on filter.
A03Filter media: Inorganic microfiber, 3 µm (absolute rating per ISO 16889). The US catalogue uses the CSG prefix for this cartridge.
ASeals: NBR (nitrile).
P01MP Filtri standard catalogue item execution.

Typical equipment & applications

Tank-mounted return-line hydraulic filters
Hydraulic power units and lubrication systems
Construction and agricultural machinery
Machine tool and industrial hydraulic systems

Frequently asked questions

What micron rating does CS050A03AP01 use?

This element is rated 3 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 CS050A03AP01 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 CS050A03AP01 part number?

See the designation decoder above: each segment of CS050A03AP01 encodes size, line type, filtration grade and media/collapse execution.

How often should a hydraulic filter 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.