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100 YRS
167 DAYS

O-121CS - 0.41 Inch Music Wire Extension Springs

Inventory:           
Estimated Lead Time

The O-121CS is an extension spring manufactured by Century Spring. It is made from high-quality Music Wire with a standard finish. This spring has a wire diameter of 0.019 Inch and an outside diameter of 0.188 inches. Its free length is 0.41 inches, and it has an initial tension of 0.2 Pound. The O-121CS has a maximum deflection of 0.34 Inch and can withstand a maximum load of 1.9 Pound Force. It features machine hook ends and a left wind direction. This regular extension spring is suitable for various applications.

At Century Spring, we take pride in our fast shipping and extensive stock inventory. We understand the importance of timely delivery, and our efficient shipping ensures that you receive your springs quickly. Moreover, all our products, including the O-121CS, are proudly made in the United States. With our commitment to quality and availability, Century Spring is your trusted source for springs for any project.

Unit System
Specs (in standard)
Label Value
A) Brand Century Spring
B) Sku O-121CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.019 in
F) Outside Diameter 0.188 in
G) Length 0.41 in
H) End Type Machine Hook
I) End Position Random
J) Rate 5.2 lbs/in
K) Initial Tension 0.2 lb
L) Sugg Max Deflection 0.34 in
L) Sugg Max Load 1.9 lbf
O) Finish None
Specs (in metric)
Label Value
A) Brand Century Spring
B) Sku O-121CS
C) Part Type Standard
D) Material Music Wire
E) Wire Diameter 0.48 mm
F) Outside Diameter 4.78 mm
G) Length 10.41 mm
H) End Type Machine Hook
I) End Position Random
J) Rate 0.91 N/mm
K) Initial Tension 0.09 kg
L) Sugg Max Deflection 8.64 mm
L) Sugg Max Load 8.45 N
O) Finish None