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Century Spring

221CS - 5.5 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 0.375 Inch and an initial tension of 6 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name 221
Ends Full Loop
Finish Zinc
Initial Tension 6 lb
Length 5.5 in
Material High Carbon Steel
Outside Diameter 0.375 in
Part Type Standard
Rate 8.9 lbs/in
SKU 221CS
Sugg Max Deflection 1.9 in
Sugg Max Load 23 lbf
Wind Direction Left
Wire Diameter 0.0625 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 221
Ends Full Loop
Finish Zinc
Initial Tension 2.72 kg
Length 139.7 mm
Material High Carbon Steel
Outside Diameter 9.53 mm
Part Type Standard
Rate 1.56 N/mm
SKU 221CS
Sugg Max Deflection 48.26 mm
Sugg Max Load 102.3 N
Wind Direction Left
Wire Diameter 1.59 mm

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