This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

B3-20 - 2.5 Inch High Carbon Steel Extension Spring

Inventory Status
In-stock
Estimated Lead Time
In-stock parts: usually ships in 12-24 hours

Regular extension spring in High Carbon Steel. This spring features an O.D. of 0.312 Inch and an initial tension of 2 Pound.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name B3-20
Ends Double Loop
Finish None
Initial Tension 2 lb
Length 2.5 in
Material High Carbon Steel
Outside Diameter 0.312 in
Part Type Standard
Rate 6.4 lbs/in
SKU B3-20CS
Sugg Max Deflection 1.3 in
Sugg Max Load 11 lbf
Wind Direction Left
Wire Diameter 0.045 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B3-20
Ends Double Loop
Finish None
Initial Tension 0.91 kg
Length 63.5 mm
Material High Carbon Steel
Outside Diameter 7.92 mm
Part Type Standard
Rate 1.12 N/mm
SKU B3-20CS
Sugg Max Deflection 33.02 mm
Sugg Max Load 48.93 N
Wind Direction Left
Wire Diameter 1.14 mm