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2620638 — CYLINDER ASSEMBLY,HYDRAULIC BRAK

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2620638: CYLINDER ASSEMBLY,HYDRAULIC BRAK.

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include overall_width: 3.000 INCHES NOMINAL IN, overall_height: 5.750 INCHES NOMINAL IN, mounting_provision: UNTHREADED MOUNTING HOLES, design_characteristics: SINGLE ACTING SINGLE CYLINDER, mounting_facility_diameter: 0.344 INCHES NOMINAL IN, mounting_provision_arrangement_style: TWO HOLE. This part is cataloged in the U.S.

Government catalog under NSN 2530-00-366-8403, 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
2620638
NSN: 2530-00-366-8403
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
overall_width3.000 INCHES NOMINAL IN
overall_height5.750 INCHES NOMINAL IN
mounting_provisionUNTHREADED MOUNTING HOLES
design_characteristicsSINGLE ACTING SINGLE CYLINDER
mounting_facility_diameter0.344 INCHES NOMINAL IN
mounting_provision_arrangement_styleTWO HOLE
center_to_center_distance_between_mounting_provisions2.625 INCHES NOMINAL IN
NSN2530-00-366-8403
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN 2620638 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
•
MOUNTING FACILITY DIAMETER: 0.344 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING PROVISIONS: 2.625 INCHES NOMINAL IN
•
DESIGN CHARACTERISTICS: SINGLE ACTING SINGLE CYLINDER
•
MOUNTING PROVISION ARRANGEMENT STYLE: TWO HOLE
•
MOUNTING PROVISION: UNTHREADED MOUNTING HOLES
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY DIAMETER0.344 INCHES NOMINAL IN
OVERALL HEIGHT5.750 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING PROVISIONS2.625 INCHES NOMINAL IN
DESIGN CHARACTERISTICSSINGLE ACTING SINGLE CYLINDER
MOUNTING PROVISION ARRANGEMENT STYLETWO HOLE
OVERALL WIDTH3.000 INCHES NOMINAL IN
MOUNTING PROVISIONUNTHREADED MOUNTING HOLES
OTHER ITEMS IN FSC 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2530-00-003-5229 2530-00-139-4058 2530-00-363-4183 2530-00-478-5792 2530-00-496-2927 2530-00-701-0656 2530-00-734-2546 2530-01-171-5122
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2620638?
2620638 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What is the NSN for 2620638?
2620638 is cataloged in the U.S. Government catalog under NSN 2530-00-366-8403. 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.