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148CS - 8.50 Inch High Carbon Steel Extension Springs

The 148CS is a regular extension spring manufactured by Century Spring. It features machine hook ends and a zinc finish. This spring has a free length of 8.5 inches and an initial tension of 3 pounds. Made from High Carbon steel, it has a maximum deflection of 13 inches and a maximum load of 21 pound force. With an outside diameter of 1.062 inches and a wire diameter of 0.091 inches, this spring has a rate of 1.4 inches per pound. The 148CS is a left wind spring and is suitable for various applications.

At Century Spring, we pride ourselves on fast shipping and maintaining a significant stock inventory. Our products, including the 148CS, are proudly made in the United States. With our reliable 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 3 lb
Length 8.5 in
Material High Carbon Steel
Outside Diameter 1.062 in
Part Type Standard
Rate 1.4 lbs/in
SKU 148CS
Sugg Max Deflection 13 in
Sugg Max Load 21 lbf
Wind Direction Left
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Ends Machine Hook
Finish Zinc
Initial Tension 1.36 kg
Length 215.9 mm
Material High Carbon Steel
Outside Diameter 26.97 mm
Part Type Standard
Rate 0.25 N/mm
SKU 148CS
Sugg Max Deflection 330.2 mm
Sugg Max Load 93.41 N
Wind Direction Left
Wire Diameter 2.31 mm
Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours
Quantity Price
1 - 49 $8.86
50 - 149 $8.42
150 - 299 $7.98
300 - 499 $7.54
500 - 749 $6.65
750 - 999 $5.76
1000+ Call for price