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Outer Diameter (OD):

Wire Diameter:

Free Length (Inside Hooks):

Design Units:

Maximum Load:

Spring Rate:

Extended Length:

Drawbar Spring?

Constant Force Spring?

Constant Force:

Spring Material:

Help with Extension Springs specifications:

Dimensions
   Outer Diameter (OD):         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Wire Diameter:         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Free Length (Inside Hooks):       Free length (inside hooks) - Unloaded length. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Design Units:       
   Your choices are...         
   English Units       Design units such as inches or fractions of an inch. 
   Metric Units       Design units such as millimeters and centimeters. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Spring Parameters
   Maximum Load:       Load at full extension. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Spring Rate:       Force per unit spring deflection. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Extended Length:       Length at full rated extension. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Special Spring Types
   Drawbar Spring?       Extends to a solid stop. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Constant Force Spring?       Constant Force means the spring force is not a function of displacement. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Constant Force:         
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Spring Material
   Spring Material       
   Your choices are...         
   Stainless Steel         
   High Carbon Steel Wire         
   Alloy Steel (Music Wire)         
   Nickel Base Alloy Wire         
   Copper Base Alloy         
   Brass         
   Hard Drawn         
   Other         
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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