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637CS - 4.5 Inch High Carbon Steel Extension Spring

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Regular extension spring in High Carbon Steel. This spring features an O.D. of 0.812 Inch and an initial tension of 5 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 637
Ends Machine Hook
Finish Zinc
Initial Tension 5 lb
Length 4.5 in
Material High Carbon Steel
Outside Diameter 0.812 in
Part Type Standard
Rate 7.1 lbs/in
SKU 637CS
Sugg Max Deflection 3.3 in
Sugg Max Load 29 lbf
Wire Diameter 0.091 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 637
Ends Machine Hook
Finish Zinc
Initial Tension 2.27 kg
Length 114.3 mm
Material High Carbon Steel
Outside Diameter 20.62 mm
Part Type Standard
Rate 1.24 N/mm
SKU 637CS
Sugg Max Deflection 83.82 mm
Sugg Max Load 128.99 N
Wire Diameter 2.31 mm

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