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5243CS - 1.75 Inch Music Wire Extension Springs

The 5243CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and has a zinc finish. This spring has a wire diameter of 0.027 inches, an outer diameter of 0.437 inches, and a free length of 1.75 inches. It has an initial tension of 0.1 Pound and a maximum deflection of 8.5 inches. The 5243CS has a rate of 0.25 inches per pound and a maximum load of 2.2 Pound Force. It is a left-wound spring with machine hook ends. The 5243CS is a standard extension spring suitable for a variety of applications.

Century Spring offers fast shipping and maintains a significant stock inventory. We are proud to manufacture our springs in the United States. With our efficient shipping and ample supply, Century Spring ensures that customers can quickly receive the 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 0.1 lb
Length 1.75 in
Material Music Wire
Outside Diameter 0.437 in
Part Type Standard
Rate 0.25 lbs/in
SKU 5243CS
Sugg Max Deflection 8.5 in
Sugg Max Load 2.2 lbf
Wind Direction Left
Wire Diameter 0.027 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 0.05 kg
Length 44.45 mm
Material Music Wire
Outside Diameter 11.1 mm
Part Type Standard
Rate 0.04 N/mm
SKU 5243CS
Sugg Max Deflection 215.9 mm
Sugg Max Load 9.79 N
Wind Direction Left
Wire Diameter 0.69 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $2.60
50 - 149 $2.47
150 - 299 $2.34
300 - 499 $2.21
500 - 749 $1.95
750 - 999 $1.69
1000+ Call for price