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3866 - 0.81 Inch, 35 Inch Pounds Spring Steel Compression Spring

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

Compression spring manufactured from Spring Steel with 12 coils and Closed & Ground ends. This spring features an O.D. of 0.25 Inch, an I.D. of 0.172 Inch, and a spring rate of 35 Inch Pounds.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 3866
Ends Closed & Ground
Finish Zinc
Free Length 0.81 in
Inside Diameter 0.172 in
Material Spring Steel
Outside Diameter 0.25 in
Part Type Standard
Rate 35 lbs/in
SKU 3866CS
Solid Length 0.47 in
Suggested Max Deflection 0.25 in
Suggested Max Load 8.8 lbf
Total Coils 12
Wire Diameter 0.039 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 3866
Ends Closed & Ground
Finish Zinc
Free Length 20.57 mm
Inside Diameter 4.37 mm
Material Spring Steel
Outside Diameter 6.35 mm
Part Type Standard
Rate 6.13 N/mm
SKU 3866CS
Solid Length 11.94 mm
Suggested Max Deflection 6.35 mm
Suggested Max Load 39.14 N
Total Coils 12
Wire Diameter 0.99 mm

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