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291AS411 — PISTON ASSEMBLY,SPRING BRAKE ACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

291AS411: PISTON ASSEMBLY,SPRING BRAKE ACT.

PISTON ASSEMBLY,SPRING BRAKE ACT. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 4.270 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN, overall_diameter: 0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN, special_features: PASSIVATED, end_item_identification: 29AS416, PISTON ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 2530-01-512-1882, 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
291AS411
NSN: 2530-01-512-1882
FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_length4.270 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN
overall_diameter0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
special_featuresPASSIVATED
end_item_identification29AS416, PISTON ASSEMBLY
NSN2530-01-512-1882
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON ASSEMBLY,SPRING BRAKE ACT TITLE COMPONENT PN 291AS411 MFR PISTON ASSEMBLY,SPRING
KEY FEATURES
•
OVERALL DIAMETER: 0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN
OVERALL LENGTH4.270 INCHES MINIMUM AND 4.290 INCHES MAXIMUM IN
SPECIAL FEATURESPASSIVATED
END ITEM IDENTIFICATION29AS416, PISTON ASSEMBLY
MATERIALSTEEL CORROSION RESISTING
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.
2530-00-001-0012 2530-00-001-0035 2530-00-001-2633 2530-00-001-3371 2530-00-001-3390 2530-00-001-3393 2530-00-001-3426 2530-00-001-3427
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 291AS411?
291AS411 is a PISTON ASSEMBLY,SPRING BRAKE ACT.
What is the NSN for 291AS411?
291AS411 is cataloged in the U.S. Government catalog under NSN 2530-01-512-1882. 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.