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D-121CS - 12 Inch Oil Tempered Die Springs

The D-121CS is a medium duty compression spring manufactured by Century Spring. Made from oil tempered material, this spring does not have a finish. It has a free length of 12 inches and a hole size of 2 inches. The wire diameter is 0.438 inches and the maximum wire diameter is 0.219 inches. With a maximum deflection of 4.8 inches and a maximum deflection force of 1306 pounds, this spring offers reliable performance. The deflection for average life is 3 inches, with an average life deflection force of 816 pounds. The spring rate is 272 lbs/inch, and the rod size is 1 inches. With a shipping weight of 3.1796 pounds, the D-121CS is a quality spring suitable for a variety of applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, which is why we ensure that our products, including the D-121CS, are promptly shipped to our customers. With our significant stock inventory, customers can rely on us to have the springs they need readily available. Additionally, all our springs are proudly made in the United States, guaranteeing high quality and supporting local manufacturing. Trust Century Spring for your spring needs, and experience our efficient shipping and exceptional product selection.

Unit System
Specs (in standard)
Label Value
Average Life Deflection Force 816 lb
Brand Century Spring
Deflection For Average Life 3 in
Duty Load Medium
Finish None
Free Length 12 in
Hole Size 2 in
Material Oil Tempered
Maximum Deflection 4.8 in
Maximum Deflection Force 1306 lb
Measurement Units Standard
Rate 272 lbs/in
Rod Size 1 in
SKU D-121CS
Wire Diameter 0.438 in x 0.219 in
Specs (in metric)
Label Value
Average Life Deflection Force 370.07 kg
Brand Century Spring
Deflection For Average Life 76.2 mm
Duty Load Medium
Finish None
Free Length 304.8 mm
Hole Size 50.8 mm
Material Oil Tempered
Maximum Deflection 121.92 mm
Maximum Deflection Force 592.29 kg
Measurement Units Standard
Rate 30731.87 N/mm
Rod Size 25.4 mm
SKU D-121CS
Wire Diameter 11.13 mm x 5.56 mm