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3618CS - 0.5" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 4.5 coils and closed & ground ends. This spring features an O.D. of 0.375", and an I.D. of 0.209".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3618
Ends Closed & Ground
Finish Zinc
Free Length 0.5 in
Inside Diameter 0.209 in
Material Music Wire
Outside Diameter 0.375 in
Part Type Standard
Rate 1096 lbs/in
SKU 3618CS
Solid Length 0.37 in
Suggested Max Deflection 0.06 in
Suggested Max Load 66 lbf
Total Coils 4.5
Wire Diameter 0.083 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3618
Ends Closed & Ground
Finish Zinc
Free Length 12.7 mm
Inside Diameter 5.31 mm
Material Music Wire
Outside Diameter 9.53 mm
Part Type Standard
Rate 191.91 N/mm
SKU 3618CS
Solid Length 9.4 mm
Suggested Max Deflection 1.52 mm
Suggested Max Load 293.57 N
Total Coils 4.5
Wire Diameter 2.11 mm
The 3618 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality music wire and designed with precision and durability in mind, this spring is an essential component for a variety of mechanical systems where reliable force and resilience are paramount.

The 3618CS compression spring is designed with a free length of 1.25" total of 9.5 coils, and a rate of 5.6 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The 3618 spring design is ideal for use in industrial machinery, automotive systems, and various mechanical assemblies where reliable force application is crucial. Its robust construction and thoughtful design make it a dependable choice for engineers seeking a high-performance spring solution.