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11729CS - 3" Spring Steel Compression Spring

Inventory Status
Estimated Lead Time

Compression spring manufactured from spring steel with 18 coils and closed & ground ends. This spring features an O.D. of 0.593", and an I.D. of 0.433".

Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 11729
Ends Closed & Ground
Finish Gold Iridite
Free Length 3 in
Inside Diameter 0.433 in
Material Spring Steel
Outside Diameter 0.593 in
Part Type Standard
Rate 27 lbs/in
SKU 11729CS
Solid Length 1.44 in
Suggested Max Deflection 1.1 in
Suggested Max Load 29 lbf
Total Coils 18
Wire Diameter 0.08 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 11729
Ends Closed & Ground
Finish Gold Iridite
Free Length 76.2 mm
Inside Diameter 11 mm
Material Spring Steel
Outside Diameter 15.06 mm
Part Type Standard
Rate 4.73 N/mm
SKU 11729CS
Solid Length 36.58 mm
Suggested Max Deflection 27.94 mm
Suggested Max Load 128.99 N
Total Coils 18
Wire Diameter 2.03 mm
The 11729 compression spring is engineered for optimal performance in demanding applications. Constructed from high-quality spring steel 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 11729CS compression spring is designed with a free length of 1.13" total of 5 coils, and a rate of 135 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 11729 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.