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5785CS - 1.13 Inch Spring Steel Extension Springs

The 5785CS is a regular extension spring manufactured by Century Spring. It is made from spring steel and has a zinc finish. This spring has a wire diameter of 0.04 inches, an outside diameter of 0.359 inches, and a free length of 1.13 inches. It has an initial tension of 1 Pound and a maximum deflection of 0.62 inches. The 5785CS has a spring rate of 8.7 inches per pound and can support a maximum load of 6.4 Pound Force. It features machine hook ends and is wound in a left direction. The 5785CS is a reliable and versatile extension spring suitable for various applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our products, including the 5785CS, in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the high-quality extension springs they need for their projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1 lb
Length 1.13 in
Material Spring Steel
Outside Diameter 0.359 in
Part Type Standard
Rate 8.7 lbs/in
SKU 5785CS
Sugg Max Deflection 0.62 in
Sugg Max Load 6.4 lbf
Wind Direction Left
Wire Diameter 0.04 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.45 kg
Length 28.7 mm
Material Spring Steel
Outside Diameter 9.12 mm
Part Type Standard
Rate 1.52 N/mm
SKU 5785CS
Sugg Max Deflection 15.75 mm
Sugg Max Load 28.47 N
Wind Direction Left
Wire Diameter 1.02 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $4.12
50 - 149 $3.92
150 - 299 $3.71
300 - 499 $3.51
500 - 749 $3.09
750 - 999 $2.68
1000+ Call for price