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8703631 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

8703631: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: FULL HOOK BOTH ENDS, design_type: CLOSED, hook_radius: 0.477 INCHES NOMINAL BOTH ENDS IN, coil_quantity: 22, inside_diameter: 0.954 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-321-6485, 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
8703631
NSN: 5360-00-321-6485
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleFULL HOOK BOTH ENDS
design_typeCLOSED
hook_radius0.477 INCHES NOMINAL BOTH ENDS IN
coil_quantity22
inside_diameter0.954 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length6.046 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_free_outside_diameter1.250 INCHES NOMINAL IN
NSN5360-00-321-6485
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 8703631 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
END STYLE: FULL HOOK BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 6.046 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.954 INCHES NOMINAL IN
•
COIL QUANTITY: 22
•
COIL HELIX DIRECTION: RIGHT-HAND OR LEFT-HAND
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
END STYLEFULL HOOK BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH6.046 INCHES NOMINAL IN
INSIDE DIAMETER0.954 INCHES NOMINAL IN
COIL QUANTITY22
COIL HELIX DIRECTIONRIGHT-HAND OR LEFT-HAND
MATERIALSTEEL OVERALL
HOOK RADIUS0.477 INCHES NOMINAL BOTH ENDS 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 1
8713973Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8703631?
8703631 is a SPRING,HELICAL,EXTENSION.
What parts can replace 8703631?
There is 1 known substitute for 8703631: 8713973. Substitute compatibility should be verified for your specific system.
What is the NSN for 8703631?
8703631 is cataloged in the U.S. Government catalog under NSN 5360-00-321-6485. 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.