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1816522 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1816522: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED BOTH ENDS, inside_diameter: 0.265 INCHES NOMINAL IN, style_designator: CYLINDRICAL CONVEX END, surface_treatment: OXIDE OVERALL, spring_free_length: 3.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-490-4576, 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
1816522
NSN: 5360-00-490-4576
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED BOTH ENDS
inside_diameter0.265 INCHES NOMINAL IN
style_designatorCYLINDRICAL CONVEX END
surface_treatmentOXIDE OVERALL
spring_free_length3.750 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_deflection_rate6.150 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter0.753 INCHES NOMINAL IN
NSN5360-00-490-4576
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 1816522 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.753 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL CONVEX END
•
SPRING FREE LENGTH: 3.750 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 6.150 POUNDS PER INCH NOMINAL LBS
•
INSIDE DIAMETER: 0.265 INCHES NOMINAL IN
•
SURFACE TREATMENT: OXIDE OVERALL
•
COIL HELIX DIRECTION: RIGHT-HAND OR LEFT-HAND
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.753 INCHES NOMINAL IN
END STYLESPRING END,SQUARED BOTH ENDS
STYLE DESIGNATORCYLINDRICAL CONVEX END
SPRING FREE LENGTH3.750 INCHES NOMINAL IN
SPRING DEFLECTION RATE6.150 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER0.265 INCHES NOMINAL IN
SURFACE TREATMENTOXIDE OVERALL
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5360 — Coil, Flat, Leaf, and Wire Springs
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5360-00-001-1842 5360-00-001-1945 5360-00-001-2010 5360-00-001-3865 5360-00-001-3950 5360-00-001-4650 5360-00-001-4664 5360-00-001-4703
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 1816522?
1816522 is a SPRING,HELICAL,COMPRESSION.
What is the NSN for 1816522?
1816522 is cataloged in the U.S. Government catalog under NSN 5360-00-490-4576. 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.