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SMB144257 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

SMB144257: SPRING,HELICAL,EXTENSION.

The SPRING,HELICAL,EXTENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, end_style: MACHINE LOOP BOTH ENDS, design_type: CLOSED, load_rating: 1.125 POUNDS MINIMUM AND 1.375 POUNDS MAXIMUM LBS, coil_quantity: 32, inside_diameter: 0.126 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-209-9955, 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
SMB144257
NSN: 5360-00-209-9955
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
end_styleMACHINE LOOP BOTH ENDS
design_typeCLOSED
load_rating1.125 POUNDS MINIMUM AND 1.375 POUNDS MAXIMUM LBS
coil_quantity32
inside_diameter0.126 INCHES NOMINAL IN
style_designatorCYLINDRICAL
spring_free_length0.764 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_length_under_load1.000 INCHES NOMINAL IN
spring_free_outside_diameter0.156 INCHES NOMINAL IN
material_document_and_classificationMIL-S-7720,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5360-00-209-9955
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN SMB144257 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.156 INCHES NOMINAL IN
•
LOAD RATING: 1.125 POUNDS MINIMUM AND 1.375 POUNDS MAXIMUM LBS
•
END STYLE: MACHINE LOOP BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 0.764 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.126 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.156 INCHES NOMINAL IN
LOAD RATING1.125 POUNDS MINIMUM AND 1.375 POUNDS MAXIMUM LBS
END STYLEMACHINE LOOP BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,COND B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH0.764 INCHES NOMINAL IN
INSIDE DIAMETER0.126 INCHES NOMINAL IN
SPRING LENGTH UNDER LOAD1.000 INCHES NOMINAL IN
COIL QUANTITY32
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 SMB144257?
SMB144257 is a SPRING,HELICAL,EXTENSION.
What is the NSN for SMB144257?
SMB144257 is cataloged in the U.S. Government catalog under NSN 5360-00-209-9955. 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.