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57156R91 — CYLINDER ASSEMBLY,HYDRAULIC BRAK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

57156R91: CYLINDER ASSEMBLY,HYDRAULIC BRAK.

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include end_item_identification: IHC MODELS 5010,5050SF,COF5370. This part is cataloged in the U.S.

Government catalog under NSN 2530-00-845-8917, 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
57156R91
NSN: 2530-00-845-8917
NIINs: 008458917, 012212128
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
end_item_identificationIHC MODELS 5010,5050SF,COF5370
NSN2530-00-845-8917
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN 57156R91 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
•
ACTUATION METHOD: DIRECT
•
MOUNTING FACILITY DIAMETER: 0.406 INCHES NOMINAL IN
•
BLEEDING FEATURE QUANTITY: 2
•
PORT THREAD SERIES DESIGNATOR: UNF LOCATION NOT OTHERWISE SPECIFIED
•
BODY OUTSIDE DIAMETER: 2.312 INCHES NOMINAL IN
•
MOUNTING PROVISION ARRANGEMENT STYLE: FOUR HOLE RECTANGULAR
•
LONGEST VERTICAL DISTANCE BETWEEN MOUNTING CENTERS: 2.406 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
ACTUATION METHODDIRECT
MOUNTING FACILITY DIAMETER0.406 INCHES NOMINAL IN
OVERALL HEIGHT6.312 INCHES NOMINAL IN
BLEEDING FEATURE QUANTITY2
PORT THREAD SERIES DESIGNATORUNF LOCATION NOT OTHERWISE SPECIFIED
BODY OUTSIDE DIAMETER2.312 INCHES NOMINAL IN
MOUNTING PROVISION ARRANGEMENT STYLEFOUR HOLE RECTANGULAR
LONGEST VERTICAL DISTANCE BETWEEN MOUNTING CENTERS2.406 INCHES NOMINAL IN
OVERALL WIDTH3.531 INCHES NOMINAL IN
PORT THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
SUBSTITUTES & CROSS-REFERENCES 2
FF2951BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1123Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 57156R91?
57156R91 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace 57156R91?
There are 2 known substitutes for 57156R91: FF2951B, 1123. Substitute compatibility should be verified for your specific system.
What is the NSN for 57156R91?
57156R91 is cataloged in the U.S. Government catalog under NSN 2530-00-845-8917. 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.