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3J4121 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3J4121: 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: 8-1/2, inside_diameter: 1.430 INCHES NOMINAL IN, style_designator: CYLINDRICAL, spring_free_length: 3.810 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-932-0766, 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
3J4121
NSN: 5360-00-932-0766
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity8-1/2
inside_diameter1.430 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length3.810 INCHES NOMINAL IN
spring_solid_length0.900 INCHES NOMINAL IN
coil_helix_directionLEFT-HAND
spring_deflection_rate7.500 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter1.640 INCHES NOMINAL IN
NSN5360-00-932-0766
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 3J4121 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 1.640 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 0.900 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 3.810 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 7.500 POUNDS PER INCH NOMINAL LBS
•
INSIDE DIAMETER: 1.430 INCHES NOMINAL IN
•
COIL QUANTITY: 8-1/2
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER1.640 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH0.900 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH3.810 INCHES NOMINAL IN
SPRING DEFLECTION RATE7.500 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER1.430 INCHES NOMINAL IN
COIL QUANTITY8-1/2
COIL HELIX DIRECTIONLEFT-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 3J4121?
3J4121 is a SPRING,HELICAL,COMPRESSION.
What is the NSN for 3J4121?
3J4121 is cataloged in the U.S. Government catalog under NSN 5360-00-932-0766. 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.