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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LE 031C 001M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
7.000
Product Series
Published Stock Code
LE031C001M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
3.30
Rate (kg/cm)
3.36
Rate (lb/in)
18.84
Rate (gm/mm)
336.40
Weight per Item (lb)
0.00
Material Specification
ASTM A228
Free Length (cm)
1.588
Free Length (inch)
0.625
Free Length (mm)
15.880
Free Length - Build Spec (in)
0.63
Free Length Tolerance (cm)
0.08
Free Length Tolerance (in)
0.03
Free Length Tolerance (mm)
0.76
Free Length Tolerance - Build Spec (in)
0.03
Inside Diameter (cm)
0.48
Inside Diameter (in)
0.19
Inside Diameter (mm)
4.78
Outside Diameter (cm)
0.635
Outside Diameter (in)
0.25
Outside Diameter (mm)
6.35
Outside Diameter - Build Spec (in)
0.25
Outside Diameter Tolerance (cm)
0.01
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.13
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
3364.00
Rate (kg/mm)
0.34
Rate (N/cm)
33.00
Rate - Build Spec (lb/in)
18.84
Rate Tolerance (gm/cm)
336.40
Rate Tolerance (gm/mm)
33.64
Rate Tolerance (kg/cm)
0.34
Rate Tolerance (kg/mm)
0.03
Rate Tolerance (lb/in)
1.88
Rate Tolerance (N/cm)
3.30
Rate Tolerance (N/mm)
0.33
Rate Tolerance - Build Spec (lb/in)
1.88
Total Coils - Build Spec
7.00
Wire Diameter (cm)
0.08
Wire Diameter (inch)
0.03
Wire Diameter (mm)
0.79
Wire Diameter - Build Spec (in)
0.03
Material Short Description
MW
Product Series
Standard Extension Series (inch)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
0.70
Initial Tension (lb)
0.70
Initial Tension (N)
3.11
Initial Tension (kg)
0.32
Initial Tension (gm)
317.50
Initial Tension Tolerance - Build Spec. (lb)
0.14
Initial Tension Tolerance (lb)
0.14
Initial Tension Tolerance (N)
0.62
Initial Tension Tolerance (kg)
0.06
Initial Tension Tolerance (gm)
63.50
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
5.20
Max Load (lb)
5.20
Max Load (kg)
2.36
Max Load (gm)
2358.70
Max Extended Length - Build Spec. (in)
0.87
Max Extended Length (in)
0.87
Max Extended Length (mm)
21.97
Max Extended Length (cm)
2.20
Body Length - Build Spec. (in)
0.25
Body Length (in)
0.25
Body Length (mm)
6.32
Body Length (cm)
0.63
Loop Inside Diameter - Build Spec. (in)
0.19
Loop Inside Diameter (in)
0.19
Loop Inside Diameter (mm)
4.78
Loop Inside Diameter (cm)
0.48
Loop Position
Random
Loop Opening - Build Spec. (in)
0.03
Loop Opening (in)
0.03
Loop Opening (mm)
0.79
Loop Opening (cm)
0.08
Max Load (N)
23.13
Inside Diameter - Build Spec (in)
0.19
Model Code
LE

Extension Spring: OD 0.25 in, FL 0.625 in, Music Wire

Standard Extension Series (inch)

Selection to Match Your Needs

Lee Spring LE 031C 001M is a precision extension spring from the Standard Extension Series (inch), engineered for applications requiring reliable quality extension springs. This spring features a 0.25-inch outside diameter (6.35 mm) with 0.188-inch loop inside diameter (4.78 mm) and extends from a free length of 0.625 inch (15.88 mm) to a maximum extended length of 0.865 inch (21.97 mm). Made from Music Wire with a 0.031-inch wire diameter (0.79 mm), the spring delivers a spring rate of 18.84 lb/inch (3.3 N/mm) through its 7 total coils with an initial tension of 0.7 lb (3.114 N). The spring supports a maximum load of 5.2 lb (23.131 N) at full extension with a body length of 0.249 inch (6.32 mm). The spring features Random loop position and Zinc Plate and Bake per ASTM B633 finish for optimal performance.

Extension Springs: Standard Series

The Lee Spring Standard Extension Spring Series includes a wide range of size and rate combinations and in both inch and metric sizes. Standard Series springs are available in Music Wire, Type 302 Stainless Steel and Type 316 Stainless Steel. Metric Series springs are available in Music Wire and Type 302 Stainless Steel. The Music Wire springs are provided with a plating finish for light corrosion resistance. The Type 302 Stainless Steel springs are passivated, while Type 316 Stainless Steel springs are passivated and ultrasonically cleaned.

Lee Spring's Stock Extension Springs are supplied with full diameter loops (either to machine or crossover center style) at a random position with the exception of Metric Extension Springs which are specified to meet DIN Standards. Loop openings are approximately one wire diameter and the direction of wind is factory optional.

Standard Extension Series (inch) Extension Springs have useful applications in various industries, including:

  • Medical devices
  • Firearms
  • Pharmaceutical delivery devices
  • Lighting and electrical control
  • Petro-chemical processes
  • Communication devices
  • Aerospace
  • Testing and measurement equipment
  • Marine applications
  • Automotive
  • Locks and security devices
  • Precision Instruments
  • Hardware

...and many more applications

245361
Product Extension OD 0.25 in, Length 0.625 in, Music Wire
Product Extension OD 6.35 mm, Length 15.88 mm, Music Wire
Part Number LE 031C 001M
Series Standard Extension Series (inch)
Outside Diameter (inch) 0.25
Outside Diameter (cm) 0.635
Outside Diameter (mm) 6.35
Wire Diameter (inch) 0.031
Wire Diameter (cm) 0.079
Wire Diameter (mm) 0.79
Max Load (gm) 2358.7
Max Load (lb) 5.2
Max Load (kg) 2.3587
Max Load (N) 23.131
Rate (gm/cm) 3364
Rate (gm/mm) 336.4
Rate (kg/cm) 3.364
Rate (kg/mm) 0.3364
Rate (lb/in) 18.84
Rate (N/cm) 33
Rate (N/mm) 3.3
Max Extended Length (cm) 2.197
Max Extended Length (in) 0.865
Max Extended Length (mm) 21.97
Initial Tension (gm) 317.5
Initial Tension (kg): 0.3175
Initial Tension (lb) 0.7
Initial Tension (N) 3.114
Free Length (cm) 1.588
Free Length (inch) 0.625
Free Length (mm) 15.88
Material Music Wire
Loop Inside Diameter (cm) 0.478
Loop Inside Diameter (in) 0.188
Loop Inside Diameter (mm) 4.78
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.031 0.25 0.005 0.625 0.03 7 0.7 0.14 18.84 1.884 0.865 5.2 0.031 0.249 Random 0.25 0.005 0.625 0.03 7 0.7 0.14 18.84 1.884 0.865 5.2
Default View
Side view
Top view
Quantity Price
1 - 19 $8.870
20 - 49 $5.370
50 - 99 $2.840
100 - 199 $1.770
200 - 299 $1.482
300 - 399 $1.395
400 - 499 $1.318
500 - 599 $1.243
600 - 699 $1.184
700 - 799 $1.130
800 - 899 $1.086
900 - 999 $1.048
1000 $1.022

Why Choose Lee Spring?

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on Stock Springs in the Continental United States

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on all Music Wire Stock Springs

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on all Standard Stock Compression Springs

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on Stock and Custom Springs

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on all Stock Springs and Custom Springs

Guaranteed RoHS Compliance

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at all Locations

Enhanced CAD Downloads

on Stock Springs Designs

Global Flexibility

allows Lee Spring to find solutions that meet your
geographic requirements wherever your business
takes you in the world