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Century Spring

S-521CS - 1.25 Inch 302/304 Stainless Steel Extension Spring

Inventory Status
Estimated Lead Time

Regular extension spring in 302/304 Stainless Steel. This spring features an O.D. of 0.188 Inch and an initial tension of 0.2 Pound.

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Unit System
Specs (in standard)
Label Value
Brand Century Spring
Display Name S-521
Ends Machine Hook
Finish None
Initial Tension 0.2 lb
Length 1.25 in
Material 302/304 Stainless Steel
Outside Diameter 0.188 in
Part Type Standard
Rate 0.86 lbs/in
SKU S-521CS
Sugg Max Deflection 1.5 in
Sugg Max Load 1.5 lbf
Wind Direction Left
Wire Diameter 0.02 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name S-521
Ends Machine Hook
Finish None
Initial Tension 0.09 kg
Length 31.75 mm
Material 302/304 Stainless Steel
Outside Diameter 4.78 mm
Part Type Standard
Rate 0.15 N/mm
SKU S-521CS
Sugg Max Deflection 38.1 mm
Sugg Max Load 6.67 N
Wind Direction Left
Wire Diameter 0.51 mm

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