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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 0.18

Wire Diameter

 N/A 0.029

Free Length

 N/A 1.250

Max. Load

 N/A 5.6

Max. Extension

 N/A 1.81

Initial Tension

 N/A 0.7

Spring Rate

 N/A 8.70

Max. Load (SS)

 N/A 4.800

Max. Extension (SS)

 N/A 1.8

Initial Tension (SS)

 N/A 0.6

Spring Rate (SS)

 N/A 7.6