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SMB148312 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

SMB148312: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SHORT TWISTED HOOK BOTH ENDS, design_type: CLOSED, hook_radius: 0.105 INCHES NOMINAL BOTH ENDS IN, load_rating: 5.250 POUNDS NOMINAL LBS, coil_quantity: 14. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-537-7685, 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
SMB148312
NSN: 5360-00-537-7685
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSHORT TWISTED HOOK BOTH ENDS
design_typeCLOSED
hook_radius0.105 INCHES NOMINAL BOTH ENDS IN
load_rating5.250 POUNDS NOMINAL LBS
coil_quantity14
inside_diameter0.209 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentTIN OVERALL
spring_free_length1.041 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_length_under_load1.250 INCHES NOMINAL IN
NSN5360-00-537-7685
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN SMB148312 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.281 INCHES NOMINAL IN
•
LOAD RATING: 5.250 POUNDS NOMINAL LBS
•
END STYLE: SHORT TWISTED HOOK BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 1.041 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.209 INCHES NOMINAL IN
•
SPRING LENGTH UNDER LOAD: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.281 INCHES NOMINAL IN
LOAD RATING5.250 POUNDS NOMINAL LBS
END STYLESHORT TWISTED HOOK BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH1.041 INCHES NOMINAL IN
INSIDE DIAMETER0.209 INCHES NOMINAL IN
SPRING LENGTH UNDER LOAD1.250 INCHES NOMINAL IN
COIL QUANTITY14
SURFACE TREATMENTTIN OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
53822Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 SMB148312?
SMB148312 is a SPRING,HELICAL,EXTENSION.
What parts can replace SMB148312?
There is 1 known substitute for SMB148312: 53822. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB148312?
SMB148312 is cataloged in the U.S. Government catalog under NSN 5360-00-537-7685. 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.