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D-9121421CS - 3.50 Inch Chrome Silicon Die Springs

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The D-9121421CS is a medium duty compression spring manufactured by Century Spring. This chrome silicon spring has a blue finish and a wire diameter of 0.155 inches. With a free length of 3.5 Inch and a maximum deflection of 1.31 inches, this spring is designed to provide reliable performance in various applications. It has a deflection force of 107 Pound for an average life and 128 Pound for a long life. The D-9121421CS has a rate of 122 lbs/inch and a rod size of 0.375 inches. It is proudly made in the United States by Century Spring, a trusted name in spring manufacturing.

Century Spring ensures fast shipping and maintains a significant stock inventory. We understand the importance of timely delivery, and our efficient shipping process ensures that customers receive their orders quickly. Additionally, with our extensive stock inventory, customers can rely on us to have the springs they need readily available. We take pride in manufacturing our springs in the United States, ensuring quality and supporting local industries. Trust Century Spring for your spring needs and experience our commitment to excellent products and service.

Unit System
Specs (in standard)
Label Value
Average Life Deflection Force 107 lb
Brand Century Spring
Deflection For Average Life 0.88 in
Deflection For Long Life 1.05 in
Duty Load Medium
Finish None
Finish Color Blue
Free Length 3.5 in
Hole Size 0.75 in
Long Life Deflection Force 128 lb
Material Chrome Silicon
Maximum Deflection 1.31 in
Maximum Deflection Force 160 lb
Measurement Units Standard
Rate 122 lbs/in
Rod Size 0.375 in
SKU D-9121421CS
Wire Diameter 0.155 in x 0.098 in
Specs (in metric)
Label Value
Average Life Deflection Force 48.53 kg
Brand Century Spring
Deflection For Average Life 22.35 mm
Deflection For Long Life 26.67 mm
Duty Load Medium
Finish None
Finish Color Blue
Free Length 88.9 mm
Hole Size 19.05 mm
Long Life Deflection Force 58.05 kg
Material Chrome Silicon
Maximum Deflection 33.27 mm
Maximum Deflection Force 72.56 kg
Measurement Units Standard
Rate 13784.15 N/mm
Rod Size 9.53 mm
SKU D-9121421CS
Wire Diameter 3.94 mm x 2.49 mm