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Compression Springs Compression Springs

Enter your Outside Diameter and Free Length
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Extension Springs Extension Springs

Enter your Outside Diameter and Length Inside Hook
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Torsion Springs Torsion Springs

Enter your Outside Diameter and Total Coils
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Conical Springs Conical Springs

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Extension Spring Part Number System - In Metric Millimeter

StockSpringsCatalog.com Part Number System For Extension Springs in Metric Millimeter

 

P

 

Part Number

E

 

Extension Spring

860

 

Wire Diameter

-12700

 

Outer Diameter

-20530

 

Total Coils

-SST

 

Material Type

-34900

 

Length Inside Hook

-CO

 

Hook Type

-N

 

Finish

-MM

 

Unit of Measure

 

 

Our Part Numbers Have Changed

Since we have created the new website, we have updated our dimensional part numbers to not have any decimal points. However, we have kept the three decimal spaces so remember to add the extra zeros where needed.

 

 

Previous Part Number

PE860-12700-20.530-SST-34.900-CO-N-MM

New Part Number

PE860-12700-20530-SST-34900-CO-N-MM

StockSpringsCatalog.com By Acxess Spring Part Number System In Metric Millimeter For Extension Springs

We have developed an easy stock spring part number system using the actual dimensions of the spring. This part number system for springs was developed to facilitate the creation and understanding of part numbers for springs. By using the actual dimensions of the spring in the spring part number we have made our part numbers for springs simple, but yet descriptive of the actual spring measurements in real time.

  • P stands for Part Number
  • E stands for Extension Spring
  • WD = Wire Diameter
  • OD = Outer Diameter
  • TC = Total Coils
  • Material Type
  • LIH = Length Inside Hook
  • Hook Type
  • Finish
  • MM = Unit of Measure (Millimeters)

Extension Spring Part Number Example In Metric Millimeter:

PE860-12700-20530-SST-34900-CO-N-MM

  • P = Part Number
  • E = Extension Spring
  • 860 = 0.860 Wire Diameter (WD)
  • 12700 = 12.700 Outer Diameter (OD)
  • 20530 = 20.530 Total Coils (TC)
  • SST = Material Type
  • 34900 = 34.900 Length Inside Hook (LIH)
  • CO = Hook Type
  • N = Finish
  • MM = Unit Of Measure Metric Millimeter

 

Nomenclature:

Material Type: BC = Beryllium Copper, HD = Hard Drawn, MW = Music Wire, OT = Oil Tempered, PB = Phosphor Bronze, SPR = Spring Steel, SST = Stainless Steel

Hook Type: CO = Closed Over Hook, MH = Machine Hook

Hook Type: * = Double Loop, ** = Side Hook/Loop, *** = Extended Hooks

Finish: BO = Black Oxide, GI = Gold Irridite, N = None, Z = Zinc

Unit of Measurement: MM = millimeters, IN = inches

StockSpringsCatalog.com By Acxess Spring Part Number System In Inches For Extension Springs.