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Century Spring

B3-69CS - 1.48" 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 0.312", and an I.D. of 0.252".

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name B3-69
Ends Closed
Finish None
Free Length 1.48 in
Inside Diameter 0.252 in
Material Music Wire
Outside Diameter 0.312 in
Part Type Standard
Rate 3.1 lbs/in
SKU B3-69CS
Solid Length 0.6 in
Suggested Max Deflection 0.88 in
Suggested Max Load 2.7 lbf
Total Coils 19
Wire Diameter 0.03 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B3-69
Ends Closed
Finish None
Free Length 37.59 mm
Inside Diameter 6.4 mm
Material Music Wire
Outside Diameter 7.92 mm
Part Type Standard
Rate 0.54 N/mm
SKU B3-69CS
Solid Length 15.24 mm
Suggested Max Deflection 22.35 mm
Suggested Max Load 12.01 N
Total Coils 19
Wire Diameter 0.76 mm
The B3-69 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 B3-69CS compression spring is designed with a free length of 0.75" total of 5 coils, and a rate of 9 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 B3-69 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.

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