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8421903 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

8421903: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL UNS K08500 OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 20, inside_diameter: 0.453 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-720-5806, 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
8421903
NSN: 5360-00-720-5806
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL UNS K08500 OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity20
inside_diameter0.453 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentPHOSPHATE OVERALL
spring_free_length4.400 INCHES NOMINAL IN
spring_solid_length1.080 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_free_outside_diameter0.561 INCHES NOMINAL IN
spring_solid_outside_diameter0.593 INCHES NOMINAL IN
material_document_and_classificationQQ-W-470,COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-720-5806
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 8421903 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.561 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 1.080 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470,COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 4.400 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.453 INCHES NOMINAL IN
•
SPRING SOLID OUTSIDE DIAMETER: 0.593 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.561 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH1.080 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470,COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH4.400 INCHES NOMINAL IN
INSIDE DIAMETER0.453 INCHES NOMINAL IN
SPRING SOLID OUTSIDE DIAMETER0.593 INCHES NOMINAL IN
COIL QUANTITY20
SURFACE TREATMENTPHOSPHATE 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 8421903?
8421903 is a SPRING,HELICAL,COMPRESSION.
What is the NSN for 8421903?
8421903 is cataloged in the U.S. Government catalog under NSN 5360-00-720-5806. 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.