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B4-15 - 0.5 Inch Spring Steel Compression Spring

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

Regular compression spring in Spring Steel with 3.5 total coils and Closed & Ground ends. This spring features an O.D. of 0.843 Inch, and an I.D. of 0.743 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 B4-15
Ends Closed & Ground
Finish None
Free Length 0.5 in
Inside Diameter 0.743 in
Material Spring Steel
Outside Diameter 0.843 in
Part Type Standard
Rate 12 lbs/in
SKU B4-15CS
Solid Length 0.18 in
Suggested Max Deflection 0.33 in
Suggested Max Load 3.9 lbf
Total Coils 3.5
Wire Diameter 0.05 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name B4-15
Ends Closed & Ground
Finish None
Free Length 12.7 mm
Inside Diameter 18.87 mm
Material Spring Steel
Outside Diameter 21.41 mm
Part Type Standard
Rate 2.1 N/mm
SKU B4-15CS
Solid Length 4.57 mm
Suggested Max Deflection 8.38 mm
Suggested Max Load 17.35 N
Total Coils 3.5
Wire Diameter 1.27 mm

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