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D-306728CS - 178 Millimeter Chrome Silicon Die Springs

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The D-306728CS is an extra heavy duty compression spring manufactured by Century Spring. It belongs to the metric - ISO (index) and extra heavy categories. This spring has a free length of 178 millimeters and a hole size of 40 millimeters. Its deflection measurements are 30.3 millimeters, 35.6 millimeters, and 44.5 millimeters respectively. The D-306728CS is made from chrome silicon material and has a powder coat finish in yellow color. It has a maximum deflection of 56.6 millimeters and a spring rate of 151.9 newtons per millimeter. The load capacity of this spring is 4597 newtons, 5408 newtons, and 6760 newtons for Load 1, Load 2, and Load 3 respectively. At maximum deflection, it can withstand a load of 8598 newtons. With a shipping weight of 1.511 pounds, the D-306728CS is a reliable and durable spring suitable for various applications.

At Century Spring, we offer fast shipping and maintain a significant stock inventory. Our products, including the D-306728CS, 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
Specs (in standard)
Label Value
Brand Century Spring
Deflection 1 1.1929 in
Deflection 2 1.4016 in
Deflection 3 1.752 in
Duty Load Extra Heavy
Finish Powder Coat
Finish Color Yellow
Free Length 7.0079 in
Hole Size 1.5748 in
Load 1 1033.4982 lbf
Load 2 1215.8273 lbf
Load 3 1519.7842 lbf
Load At Max Deflection 1933.0036 lbf
Material Chrome Silicon
Max Deflection 2.2283 in
Measurement Units Metric
Rate 867.5043 lbs/in
Rod Size 0.7874 in
SKU D-306728CS
Specs (in metric)
Label Value
Brand Century Spring
Deflection 1 30.3 mm
Deflection 2 35.6 mm
Deflection 3 44.5 mm
Duty Load Extra Heavy
Finish Powder Coat
Finish Color Yellow
Free Length 178 mm
Hole Size 40 mm
Load 1 4597 N
Load 2 5408 N
Load 3 6760 N
Load At Max Deflection 8598 N
Material Chrome Silicon
Max Deflection 56.6 mm
Measurement Units Metric
Rate 151.9 N/mm
Rod Size 20 mm
SKU D-306728CS