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5018-656 — SPRING,HELICAL,EXTENSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5018-656: 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: 0.140 INCHES NOMINAL BOTH ENDS IN, load_rating: 3.000 POUNDS NOMINAL LBS, coil_quantity: 25. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-944-5348, 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
5018-656
NSN: 5360-00-944-5348
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSHORT TWISTED HOOK BOTH ENDS
design_typeCLOSED
hook_radius0.140 INCHES NOMINAL BOTH ENDS IN
load_rating3.000 POUNDS NOMINAL LBS
coil_quantity25
inside_diameter0.196 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentTIN OVERALL
spring_free_length1.626 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND
spring_length_under_load1.750 INCHES NOMINAL IN
NSN5360-00-944-5348
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,EXTENSION TITLE COMPONENT PN 5018-656 MFR SPRING,HELICAL,EXTENSI
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.272 INCHES NOMINAL IN
•
LOAD RATING: 3.000 POUNDS NOMINAL LBS
•
END STYLE: SHORT TWISTED HOOK BOTH ENDS
•
DESIGN TYPE: CLOSED
•
STYLE DESIGNATOR: CYLINDRICAL
•
SPRING FREE LENGTH: 1.626 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.196 INCHES NOMINAL IN
•
SPRING LENGTH UNDER LOAD: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.272 INCHES NOMINAL IN
LOAD RATING3.000 POUNDS NOMINAL LBS
END STYLESHORT TWISTED HOOK BOTH ENDS
DESIGN TYPECLOSED
STYLE DESIGNATORCYLINDRICAL
SPRING FREE LENGTH1.626 INCHES NOMINAL IN
INSIDE DIAMETER0.196 INCHES NOMINAL IN
SPRING LENGTH UNDER LOAD1.750 INCHES NOMINAL IN
COIL QUANTITY25
SURFACE TREATMENTTIN OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
66566Reference 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 5018-656?
5018-656 is a SPRING,HELICAL,EXTENSION.
What parts can replace 5018-656?
There is 1 known substitute for 5018-656: 66566. Substitute compatibility should be verified for your specific system.
What is the NSN for 5018-656?
5018-656 is cataloged in the U.S. Government catalog under NSN 5360-00-944-5348. 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.