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S-645CS - 1 Inch 302/304 Stainless Steel Extension Springs

Inventory Status
Estimated Lead Time

The S-645CS is a regular extension spring manufactured by Century Spring. This spring is made from 302/304 Stainless Steel and has a natural finish. It has a wire diameter of 0.028 inches, an outside diameter of 0.281 inches, and a free length of 1 inches. The S-645CS has an initial tension of 0.4 Pound and a maximum deflection of 0.73 inches. It has a spring rate of 3.2 lbs/inch and can handle a maximum load of 2.7 Pound Force. The ends of this spring are machine hooks.

At Century Spring, we take pride in our fast shipping and extensive inventory. We understand the importance of getting the right springs quickly, which is why we offer reliable and efficient shipping services. Additionally, our significant stock inventory ensures that we have the springs you need readily available. We are also proud to say that all of our products, including the S-645CS, are proudly made in the United States. Choose Century Spring for all your spring needs and experience our commitment to quality, speed, and reliability.

Download CAD
Unit System
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.4 lb
Length 1 in
Material 302/304 Stainless Steel
Outside Diameter 0.281 in
Part Type Standard
Rate 3.2 lbs/in
SKU S-645CS
Sugg Max Deflection 0.73 in
Sugg Max Load 2.7 lbf
Wind Direction Left
Wire Diameter 0.028 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish None
Initial Tension 0.18 kg
Length 25.4 mm
Material 302/304 Stainless Steel
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.56 N/mm
SKU S-645CS
Sugg Max Deflection 18.54 mm
Sugg Max Load 12.01 N
Wind Direction Left
Wire Diameter 0.71 mm