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521131 — VALVE ASSEMBLY,HYDRAULIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

521131: VALVE ASSEMBLY,HYDRAULIC.

The VALVE ASSEMBLY,HYDRAULIC is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC TUBE, exterior_color: BLACK, inside_diameter: 2.000 INCHES NOMINAL IN, outside_diameter: 2.312 INCHES NOMINAL IN, operating_pressure: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 41.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-218-6183, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
521131
NSN: 3040-00-218-6183
NIINs: 002186183, 005889210, 006133480, 012106911
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 82722 — WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP DBA WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC TUBE
exterior_colorBLACK
inside_diameter2.000 INCHES NOMINAL IN
outside_diameter2.312 INCHES NOMINAL IN
operating_pressure20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure41.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
cross-sectional_shape_styleROUND
measuring_method_and_length17.000 INCHES NOMINAL OVERALL IN
NSN3040-00-218-6183
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE ASSEMBLY,HYDRAULIC TITLE COMPONENT PN 521131 MFR VALVE ASSEMBLY,HYDRAUL
SUBSTITUTES & CROSS-REFERENCES 10
Y1025A1PC25T030-42Reference document
Same NSN cross-reference
Reference document — Secondary reference
SN575013PC70T075-107Reference document
Same NSN cross-reference
Reference document — Secondary reference
X1018A1PC70T075-107Reference document
Same NSN cross-reference
Reference document — Secondary reference
X1076A1PC72T074-83Reference document
Same NSN cross-reference
Reference document — Secondary reference
SN575029PC29T030-42Reference document
Same NSN cross-reference
Reference document — Secondary reference
Y1035A1PC51T056-162T0164Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 521131?
521131 is a VALVE ASSEMBLY,HYDRAULIC.
What parts can replace 521131?
There are 10 known substitutes for 521131: Y1025A1PC25T030-42, SN575013PC70T075-107, X1018A1PC70T075-107 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 521131?
521131 is cataloged in the U.S. Government catalog under NSN 3040-00-218-6183. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.