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657221-1 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

657221-1: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, stock_diameter: 0.012 INCHES NOMINAL IN, inside_diameter: 0.050 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 0.360 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-01-585-9116, 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
657221-1
NSN: 5360-01-585-9116
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 08568 — DUREX, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity9
stock_diameter0.012 INCHES NOMINAL IN
inside_diameter0.050 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length0.360 INCHES NOMINAL IN
end_item_identificationC-130 AIRCRAFT
spring_free_outside_diameter0.074 INCHES NOMINAL IN
NSN5360-01-585-9116
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 657221-1 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.074 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 0.360 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.050 INCHES NOMINAL IN
•
STOCK DIAMETER: 0.012 INCHES NOMINAL IN
•
COIL QUANTITY: 9
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.074 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH0.360 INCHES NOMINAL IN
INSIDE DIAMETER0.050 INCHES NOMINAL IN
STOCK DIAMETER0.012 INCHES NOMINAL IN
COIL QUANTITY9
END ITEM IDENTIFICATIONC-130 AIRCRAFT
MATERIALSTEEL CORROSION RESISTING 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 657221-1?
657221-1 is a SPRING,HELICAL,COMPRESSION.
What is the NSN for 657221-1?
657221-1 is cataloged in the U.S. Government catalog under NSN 5360-01-585-9116. 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.