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5978CS - 1.25 Inch 302/304 Stainless Steel Extension Springs

The 5978CS is a regular extension spring manufactured by Century Spring. It is made from 302/304 Stainless Steel with a wire diameter of 0.031 Inch and an outside diameter of 0.359 inches. This spring has a free length of 1.25 Inch and an initial tension of 0.3 Pound. It has a maximum deflection of 2.1 Inch and a maximum load of 2.8 Pound Force. The 5978CS is designed with full loop ends and has a spring rate of 1.2 inches per pound. It is suitable for various applications requiring extension springs.

At Century Spring, we take pride in our fast shipping and large inventory. We understand the importance of delivering springs promptly, which is why we offer efficient shipping options. Additionally, our substantial stock ensures that we have a wide selection of springs available for immediate shipment. As a company based in the United States, we are committed to producing high-quality springs that meet industry standards. Trust Century Spring for reliable shipping, ample supply, and superior springs for your projects.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.3 lb
Length 1.25 in
Material 302/304 Stainless Steel
Outside Diameter 0.359 in
Part Type Standard
Rate 1.2 lbs/in
SKU 5978CS
Sugg Max Deflection 2.1 in
Sugg Max Load 2.8 lbf
Wind Direction Left
Wire Diameter 0.031 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Full Loop
Finish None
Initial Tension 0.14 kg
Length 31.75 mm
Material 302/304 Stainless Steel
Outside Diameter 9.12 mm
Part Type Standard
Rate 0.21 N/mm
SKU 5978CS
Sugg Max Deflection 53.34 mm
Sugg Max Load 12.45 N
Wind Direction Left
Wire Diameter 0.79 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Pricing reflects the base un-configured part price. Final per piece price including configured options will be calculated once a quantity is entered in the field above.

Quantity Price
1 - 49 $5.57
50 - 149 $5.30
150 - 299 $5.02
300 - 499 $4.74
500 - 749 $4.18
750 - 999 $3.63
1000+ Call for price