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5045CS - 1.75 Inch Spring Steel Extension Springs

The 5045CS 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 0.038 inches, an outer diameter of 0.312 inches, and a free length of 1.75 inches. It has an initial tension of 1 Pound and a maximum deflection of 1.3 inches. The 5045CS has a spring rate of 4.1 inches per pound and a maximum load of 6.3 Pound Force. It features machine hook ends and is suitable for various applications.

At Century Spring, we pride ourselves on our fast shipping and extensive stock inventory. We understand the importance of receiving your springs quickly, which is why we strive to process and ship orders promptly. Additionally, our significant stock inventory ensures that we can meet the demands of our customers efficiently. We are proud to say that all our products, including the 5045CS, are made in the United States. With our reliable shipping and ample supply, Century Spring is your trusted source for high-quality springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1 lb
Length 1.75 in
Material Spring Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 4.1 lbs/in
SKU 5045CS
Sugg Max Deflection 1.3 in
Sugg Max Load 6.3 lbf
Wind Direction Left
Wire Diameter 0.038 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.45 kg
Length 44.45 mm
Material Spring Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 0.72 N/mm
SKU 5045CS
Sugg Max Deflection 33.02 mm
Sugg Max Load 28.02 N
Wind Direction Left
Wire Diameter 0.97 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.57
50 - 149 $2.45
150 - 299 $2.32
300 - 499 $2.19
500 - 749 $1.93
750 - 999 $1.68
1000+ Call for price