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20-68315-3 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

20-68315-3: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: REDUCED CENTER LOOP SECOND END, design_type: CLOSED, coil_quantity: 10, inside_diameter: 1.370 INCHES NOMINAL IN, style_designator: CYLINDRICAL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-571-0376, 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
20-68315-3
NSN: 5360-00-571-0376
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleREDUCED CENTER LOOP SECOND END
design_typeCLOSED
coil_quantity10
inside_diameter1.370 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length3.940 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
coil_to_hook_inside_length2.100 INCHES NOMINAL SECOND END IN
spring_free_outside_diameter1.570 INCHES NOMINAL IN
material_document_and_classificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-571-0376
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 20-68315-3 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 1.570 INCHES NOMINAL IN
•
END STYLE: REDUCED CENTER LOOP FIRST END
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 3.940 INCHES NOMINAL IN
•
COIL TO HOOK INSIDE LENGTH: 0.120 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER1.570 INCHES NOMINAL IN
END STYLEREDUCED CENTER LOOP FIRST END
END STYLEREDUCED CENTER LOOP SECOND END
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH3.940 INCHES NOMINAL IN
COIL TO HOOK INSIDE LENGTH0.120 INCHES NOMINAL FIRST END IN
COIL TO HOOK INSIDE LENGTH2.100 INCHES NOMINAL SECOND END IN
INSIDE DIAMETER1.370 INCHES NOMINAL IN
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20-68315-3?
20-68315-3 is a SPRING,HELICAL,EXTENSION.
What is the NSN for 20-68315-3?
20-68315-3 is cataloged in the U.S. Government catalog under NSN 5360-00-571-0376. 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.