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644A113 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

644A113: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 12, inside_diameter: 2.875 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-655-4781, 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
644A113
NSN: 5360-00-655-4781
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 81893 — GENERAL ELECTRIC CO LYNN RIVER WORKS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity12
inside_diameter2.875 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentCADMIUM OVERALL
spring_free_length11.125 INCHES NOMINAL IN
spring_solid_length5.750 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_free_outside_diameter3.875 INCHES NOMINAL IN
material_document_and_classificationQQ-W-474,COMP D-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-655-4781
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 644A113 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 3.875 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 5.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-474,COMP D-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 11.125 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.875 INCHES NOMINAL IN
•
COIL QUANTITY: 12
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER3.875 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH5.750 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-474,COMP D-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH11.125 INCHES NOMINAL IN
INSIDE DIAMETER2.875 INCHES NOMINAL IN
COIL QUANTITY12
SURFACE TREATMENTCADMIUM OVERALL
COIL HELIX DIRECTIONRIGHT-HAND
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 644A113?
644A113 is a SPRING,HELICAL,COMPRESSION.
What is the NSN for 644A113?
644A113 is cataloged in the U.S. Government catalog under NSN 5360-00-655-4781. 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.