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Century Spring

644CS - 3.5 Inch High Carbon Steel Extension Spring

Inventory Status
Estimated Lead Time

Regular extension spring in High Carbon Steel. This spring features an O.D. of 0.437 Inch and an initial tension of 1.5 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 644
Ends Full Loop
Finish Zinc
Initial Tension 1.5 lb
Length 3.5 in
Material High Carbon Steel
Outside Diameter 0.437 in
Part Type Standard
Rate 2 lbs/in
SKU 644CS
Sugg Max Deflection 3.6 in
Sugg Max Load 8.4 lbf
Wind Direction Left
Wire Diameter 0.047 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 644
Ends Full Loop
Finish Zinc
Initial Tension 0.68 kg
Length 88.9 mm
Material High Carbon Steel
Outside Diameter 11.1 mm
Part Type Standard
Rate 0.35 N/mm
SKU 644CS
Sugg Max Deflection 91.44 mm
Sugg Max Load 37.36 N
Wind Direction Left
Wire Diameter 1.19 mm

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