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5111CS - 0.81 Inch Music Wire Extension Springs

The 5111CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and a zinc finish. With a free length of 0.81 inch and initial tension of 0.2 pound, this spring is made from music wire and can handle a maximum deflection of 1.1 inches. It has a maximum load capacity of 2.8 pound force and a rate of 2.3 inches per pound. The 5111CS has an outside diameter of 0.281 inch and a wire diameter of 0.025 inches. This standard-sized spring is ideal for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the need for prompt delivery and ensure that our customers receive their springs quickly. Additionally, all our products, including the 5111CS, are proudly made in the United States. With our reliable shipping and ample supply, Century Spring is your go-to source for high-quality springs.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.2 lb
Length 0.81 in
Material Music Wire
Outside Diameter 0.281 in
Part Type Standard
Rate 2.3 lbs/in
SKU 5111CS
Sugg Max Deflection 1.1 in
Sugg Max Load 2.8 lbf
Wind Direction Left
Wire Diameter 0.025 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.09 kg
Length 20.57 mm
Material Music Wire
Outside Diameter 7.14 mm
Part Type Standard
Rate 0.4 N/mm
SKU 5111CS
Sugg Max Deflection 27.94 mm
Sugg Max Load 12.45 N
Wind Direction Left
Wire Diameter 0.64 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.12
50 - 149 $2.02
150 - 299 $1.91
300 - 499 $1.81
500 - 749 $1.59
750 - 999 $1.38
1000+ Call for price