5-64 Outer Diameter
5/64" (0.078125) Inch Outer Diameter Standard Extension Springs
Definition of 5/64" Outer Diameter Extension Springs:
A 5/64" (five sixty-fourths of an inch) outer diameter extension spring has an outer diameter of 0.078125 inches and is commonly used in compact mechanical devices where precision tension is needed. These small extension springs are great for electronics, battery compartments, toys, and other miniature mechanisms.
The Spring Store by Acxess Spring provides a comprehensive catalog of stock extension springs, including 5/64" OD models available in different lengths, tensions, and hook types.
How To Measure Your 5/64" Inner Diameter Stock Extension Spring




Your 5/64" (five sixty-fourths of an inch) extension spring’s outer diameter is an essential factor for performance and fit. A small increase or decrease in diameter could affect how much tension your spring provides and whether it fits properly into the assembly. A 5/64" OD extension spring is often used in tight spaces where light force and consistent load behavior are needed.
The 5/64" (0.078125) OD extension springs in our stock selection come in multiple configurations with variations in wire diameter, body length, and initial tension. These physical factors influence the overall load capacity and elongation performance.
Our 5/64" outer diameter extension springs are manufactured from 302 stainless steel (ASTM A 313) or music wire (ASTM A 228) to ensure durability, corrosion resistance, and strength across all applications.
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Price Part Number Image Ship typeOutside Diameter
Ship type
Inside Diameter
Outside Diameter
Free Length
Inside Diameter
Rate
Free Length
Max. Deflection
Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.
Max. Load
Max. Deflection
Solid Height
The maximum amount of force or load you can place on this spring. If you put more force than this you will distort or fatigue the spring.
Wire Diameter
Solid Height
Total Coils
Wire Diameter
Material Type
Total Coils
End Type
Material Type
End Type