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B3-43CS - 1.33" Music Wire Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from music wire with 19 coils and closed ends. This spring features an O.D. of 0.234", and an I.D. of 0.18".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B3-43
Ends Closed
Finish Black Oxide
Free Length 1.33 in
Inside Diameter 0.18 in
Material Music Wire
Outside Diameter 0.234 in
Part Type Standard
Rate 5.1 lbs/in
SKU B3-43CS
Solid Length 0.54 in
Suggested Max Deflection 0.79 in
Suggested Max Load 4 lbf
Total Coils 19
Wire Diameter 0.027 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B3-43
Ends Closed
Finish Black Oxide
Free Length 33.78 mm
Inside Diameter 4.57 mm
Material Music Wire
Outside Diameter 5.94 mm
Part Type Standard
Rate 0.89 N/mm
SKU B3-43CS
Solid Length 13.72 mm
Suggested Max Deflection 20.07 mm
Suggested Max Load 17.79 N
Total Coils 19
Wire Diameter 0.69 mm
The B3-43 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 B3-43CS compression spring is designed with a free length of 1" total of 8.5 coils, and a rate of 353 lbs/in providing a balanced combination of flexibility and strength. This spring coil, and its closed & ground end configuration allows for efficient energy storage and release, making it suitable for applications requiring precise motion control.

The B3-43 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.