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9531503 — PISTON,HYDRAULIC BRAKE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9531503: PISTON,HYDRAULIC BRAKE.

The PISTON,HYDRAULIC BRAKE is a the manufacturer industrial component. Key specifications include length: 1.875 INCHES NOMINAL IN, material: MAGNESIUM ALLOY, piston_cup: NOT INCLUDED, groove_depth: 0.185 INCHES NOMINAL IN, groove_width: 0.281 INCHES NOMINAL IN, size_designator: 3.375 IN. IN.

This part is cataloged in the U.S. Government catalog under NSN 1630-00-522-5806, 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
9531503
NSN: 1630-00-522-5806
FSC: 1630 — Aircraft Wheel and Brake Systems
CAGE: 73842 — GOODYEAR TIRE AND RUBBER CO THE (USA)
SPECIFICATIONS
length1.875 INCHES NOMINAL IN
materialMAGNESIUM ALLOY
piston_cupNOT INCLUDED
groove_depth0.185 INCHES NOMINAL IN
groove_width0.281 INCHES NOMINAL IN
size_designator3.375 IN. IN
outside_diameter3.422 INCHES NOMINAL IN
construction_typeONE-PIECE
surface_conditionEXTERNALLY GROOVED
fsc_application_dataBRAKE,SINGLE DISK,ACFT
shoe_actuating_end_typeRECESSED FOR STEEL INSERT
NSN1630-00-522-5806
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,HYDRAULIC BRAKE TITLE COMPONENT PN 9531503 MFR PISTON,HYDRAULIC BRAKE
KEY FEATURES
•
FSC APPLICATION DATA: BRAKE,SINGLE DISK,ACFT
•
LENGTH: 1.875 INCHES NOMINAL IN
•
PISTON CUP: NOT INCLUDED
•
SURFACE CONDITION: EXTERNALLY GROOVED
•
GROOVE DEPTH: 0.185 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.422 INCHES NOMINAL IN
•
SIZE DESIGNATOR: 3.375 IN. IN
•
MATERIAL: MAGNESIUM ALLOY
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATABRAKE,SINGLE DISK,ACFT
LENGTH1.875 INCHES NOMINAL IN
PISTON CUPNOT INCLUDED
SURFACE CONDITIONEXTERNALLY GROOVED
GROOVE DEPTH0.185 INCHES NOMINAL IN
OUTSIDE DIAMETER3.422 INCHES NOMINAL IN
SIZE DESIGNATOR3.375 IN. IN
MATERIALMAGNESIUM ALLOY
CONSTRUCTION TYPEONE-PIECE
GROOVE WIDTH0.281 INCHES NOMINAL IN
OTHER ITEMS IN FSC 1630 — Aircraft Wheel and Brake Systems
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1630-00-001-2283 1630-00-001-8356 1630-00-003-3083 1630-00-004-2811 1630-00-004-4065 1630-00-005-1707 1630-00-006-8704 1630-00-006-8705
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9531503?
9531503 is a PISTON,HYDRAULIC BRAKE.
What is the NSN for 9531503?
9531503 is cataloged in the U.S. Government catalog under NSN 1630-00-522-5806. 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.