Compression Springs Regular

A12-21CS - 1.13" Music Wire Compression Spring

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Compression spring manufactured from music wire with 5.5 coils and closed & ground ends. This spring features an O.D. of 0.609", and an I.D. of 0.507".

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Standard

Metric

Specs (in standard)
Label	Value
Brand	Century Spring
Display Name	A12-21
Ends	Closed & Ground
Finish	None
Free Length	1.13 in
Inside Diameter	0.507 in
Material	Music Wire
Outside Diameter	0.609 in
Part Type	Standard
Rate	16 lbs/in
SKU	A12-21CS
Solid Length	0.28 in
Suggested Max Deflection	0.68 in
Suggested Max Load	11 lbf
Total Coils	5.5
Wire Diameter	0.051 in

Specs (in metric)
Label	Value
Brand	Century Spring
Display Name	A12-21
Ends	Closed & Ground
Finish	None
Free Length	28.7 mm
Inside Diameter	12.88 mm
Material	Music Wire
Outside Diameter	15.47 mm
Part Type	Standard
Rate	2.8 N/mm
SKU	A12-21CS
Solid Length	7.11 mm
Suggested Max Deflection	17.27 mm
Suggested Max Load	48.93 N
Total Coils	5.5
Wire Diameter	1.3 mm

The compression spring A12-21CS is an essential component designed for applications requiring reliable force and energy storage. Crafted from high-quality music wire, the A12-21 compression spring design exhibits exceptional tensile strength and resilience.

The A12-21 design is manufactured with a free length of 1.13", with an outer diameter of 0.609", an inner diameter of 0.507", and a total of 5.5 coils, expertly designed to deliver consistent compression characteristics including a rate of 16 lbs/in.

The A12-21CS compression spring is ideally suited for use in a wide range of mechanical assemblies, including but not limited to automotive suspension systems, industrial machinery, and electronic devices.

In summary, the compression spring A12-21 design stands out for its superior material properties, thoughtful design, and versatility in application. It is a prime choice for engineers committed to excellence and innovation in their projects.