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Selection
Extension Springs are organized in order of increasing diameter and wire size. Note that in each category the spring rate decreases as the length increases.
Unit of Measure

Specifications

Type

 N/A Extension

Material

 N/A Stainless Steel

Outside Diameter

 N/A 0.3

Wire Diameter

 N/A 0.055

Free Length

 N/A 2.750

Max. Load

 N/A 20.7

Max. Extension

 N/A 3.56

Initial Tension

 N/A 3.4

Spring Rate

 N/A 21.30

Max. Load (SS)

 N/A 17.900

Max. Extension (SS)

 N/A 3.56

Initial Tension (SS)

 N/A 2.9

Spring Rate (SS)

 N/A 18.5