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

Regular compression spring in Hard Drawn with 3.5 total coils and Closed & Ground ends. This spring features an O.D. of 0.75 Inch, and an I.D. of 0.642 Inch.

NOTE: The spring rate value for compression springs with 4 coils or less is a reference value.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 2518
Ends Closed & Ground
Finish Zinc
Free Length 0.5 in
Inside Diameter 0.642 in
Material Hard Drawn
Outside Diameter 0.75 in
Part Type Standard
Rate 24 lbs/in
SKU 2518CS
Solid Length 0.19 in
Suggested Max Deflection 0.31 in
Suggested Max Load 7.5 lbf
Total Coils 3.5
Wire Diameter 0.054 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 2518
Ends Closed & Ground
Finish Zinc
Free Length 12.7 mm
Inside Diameter 16.31 mm
Material Hard Drawn
Outside Diameter 19.05 mm
Part Type Standard
Rate 4.2 N/mm
SKU 2518CS
Solid Length 4.83 mm
Suggested Max Deflection 7.87 mm
Suggested Max Load 33.36 N
Total Coils 3.5
Wire Diameter 1.37 mm