B6-21CS - 1.09 Inch Music Wire Extension Springs
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The B6-21CS is a regular extension spring manufactured by Century Spring. It is made from Music Wire and has no finish applied. This spring has a wire diameter of 0.025 inches, an outer diameter of 0.25 inches, and a free length of 1.09 inches. It has an initial tension of 0.3 Pound and a maximum deflection of 1.9 inches. The B6-21CS has a spring rate of 1.5 lbs/inch and a maximum load of 3.1 Pound Force. It is a left wind spring with machine hook ends. This regular extension spring is suitable for a variety of applications.
Century Spring offers fast shipping and maintains a significant stock inventory. We proudly manufacture our springs 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.


Label | Value |
---|---|
Brand | Century Spring |
Ends | Machine Hook |
Finish | None |
Initial Tension | 0.3 lb |
Length | 1.09 in |
Material | Music Wire |
Outside Diameter | 0.25 in |
Part Type | Standard |
Rate | 1.5 lbs/in |
SKU | B6-21CS |
Sugg Max Deflection | 1.9 in |
Sugg Max Load | 3.1 lbf |
Wind Direction | Left |
Wire Diameter | 0.025 in |
Label | Value |
---|---|
Brand | Century Spring |
Ends | Machine Hook |
Finish | None |
Initial Tension | 0.14 kg |
Length | 27.69 mm |
Material | Music Wire |
Outside Diameter | 6.35 mm |
Part Type | Standard |
Rate | 0.26 N/mm |
SKU | B6-21CS |
Sugg Max Deflection | 48.26 mm |
Sugg Max Load | 13.79 N |
Wind Direction | Left |
Wire Diameter | 0.64 mm |