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72978 - 3 Inch Music Wire Compression Spring

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

Compression spring manufactured from Music Wire with 6.5 coils and Closed & Ground ends. This spring features an O.D. of 1.937 Inch, and an I.D. of 1.553 Inch.

Unit System
View Spec Sheet
Specs (in standard)
Label Value
Brand Century Spring
Display Name 72978
Ends Closed & Ground
Finish None
Free Length 3 in
Inside Diameter 1.553 in
Material Music Wire
Outside Diameter 1.937 in
Part Type Standard
Rate 82 lbs/in
SKU 72978CS
Solid Length 1.25 in
Suggested Max Deflection 1.8 in
Suggested Max Load 144 lbf
Total Coils 6.5
Wire Diameter 0.192 in
Specs (in metric)
Label Value
Brand Century Spring
Display Name 72978
Ends Closed & Ground
Finish None
Free Length 76.2 mm
Inside Diameter 39.45 mm
Material Music Wire
Outside Diameter 49.2 mm
Part Type Standard
Rate 14.36 N/mm
SKU 72978CS
Solid Length 31.75 mm
Suggested Max Deflection 45.72 mm
Suggested Max Load 640.51 N
Total Coils 6.5
Wire Diameter 4.88 mm

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