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4X21 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4X21: 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: 15-1/4, inside_diameter: 0.344 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, style_designator: CYLINDRICAL, spring_free_length: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-253-6962, 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
4X21
NSN: 5360-00-253-6962
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 70876 — BATH IRON WORKS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity15-1/4
inside_diameter0.344 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
style_designatorCYLINDRICAL
spring_free_length2.000 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_deflection_rate12.750 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
NSN5360-00-253-6962
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 4X21 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 2.000 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 12.750 POUNDS PER INCH NOMINAL LBS
•
INSIDE DIAMETER: 0.344 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
•
COIL QUANTITY: 15-1/4
•
COIL HELIX DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.453 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH2.000 INCHES NOMINAL IN
SPRING DEFLECTION RATE12.750 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER0.344 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
COIL QUANTITY15-1/4
COIL HELIX DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
236174Reference document
Same NSN cross-reference
Reference document — Secondary reference
10EL230Reference document
Same NSN cross-reference
Reference document — Secondary reference
F600L223Reference document
Same NSN cross-reference
Reference document — Secondary reference
10016Reference document
Same NSN cross-reference
Reference document — Secondary reference
10EL00230Reference document
Same NSN cross-reference
Reference document — Secondary reference
YR233Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4X21?
4X21 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 4X21?
There are 6 known substitutes for 4X21: 236174, 10EL230, F600L223 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4X21?
4X21 is cataloged in the U.S. Government catalog under NSN 5360-00-253-6962. 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.