.

NORTH AMERICA

EUROPE

ASIA

CENTRAL & SOUTH AMERICA

AFRICA & MIDDLE EAST

Pacific Rim

 
0 Items Total: $0.00
×
 
Main view
side view
Top view
3D
2D
Quantity
 

Add

Enter your details and we'll get started right away.

Most quotes are generated and emailed instantly. Large-volume requests are reviewed by our team and typically follow up within 1 business day.

 

Specifications

 

Download Spec Sheet

Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LE 029C 13 M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.02 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
123.700
Published Stock Code
LE029C13M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.14
Rate (kg/cm)
0.14
Rate (lb/in)
0.80
Rate (gm/mm)
14.20
Weight per Item (lb)
0.02
Material Specification
ASTM A228
Free Length (cm)
10.160
Free Length (inch)
4.000
Free Length (mm)
101.600
Free Length - Build Spec (in)
4.00
Free Length Tolerance (cm)
0.20
Free Length Tolerance (in)
0.08
Free Length Tolerance (mm)
2.03
Free Length Tolerance - Build Spec (in)
0.08
Inside Diameter (cm)
0.49
Inside Diameter (in)
0.19
Inside Diameter (mm)
4.88
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)
142.00
Rate (kg/mm)
0.01
Rate (N/cm)
1.39
Rate - Build Spec (lb/in)
0.80
Rate Tolerance (gm/cm)
14.20
Rate Tolerance (gm/mm)
1.42
Rate Tolerance (kg/cm)
0.01
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.08
Rate Tolerance (N/cm)
0.14
Rate Tolerance (N/mm)
0.01
Rate Tolerance - Build Spec (lb/in)
0.08
Total Coils - Build Spec
123.69
Wire Diameter (cm)
0.07
Wire Diameter (inch)
0.03
Wire Diameter (mm)
0.74
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)
0.55
Initial Tension (lb)
0.55
Initial Tension (N)
2.45
Initial Tension (kg)
0.25
Initial Tension (gm)
249.50
Initial Tension Tolerance - Build Spec. (lb)
0.11
Initial Tension Tolerance (lb)
0.11
Initial Tension Tolerance (N)
0.49
Initial Tension Tolerance (kg)
0.05
Initial Tension Tolerance (gm)
49.90
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
4.30
Max Load (lb)
4.30
Max Load (kg)
1.95
Max Load (gm)
1950.50
Max Extended Length - Build Spec. (in)
8.72
Max Extended Length (in)
8.72
Max Extended Length (mm)
221.39
Max Extended Length (cm)
22.14
Body Length - Build Spec. (in)
3.62
Body Length (in)
3.62
Body Length (mm)
91.85
Body Length (cm)
9.19
Loop Inside Diameter - Build Spec. (in)
0.19
Loop Inside Diameter (in)
0.19
Loop Inside Diameter (mm)
4.88
Loop Inside Diameter (cm)
0.49
Loop Position
Random
Loop Opening - Build Spec. (in)
0.03
Loop Opening (in)
0.03
Loop Opening (mm)
0.74
Loop Opening (cm)
0.07
Max Load (N)
19.13
Inside Diameter - Build Spec (in)
0.19
Model Code
LE

Standard Extension Series (inch)

Selection to Match Your Needs

Lee Spring LE 029C 13 M 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 0.192-inch loop inside diameter (4.88 mm) and extends from a free length of 4 inch (101.6 mm) to a maximum extended length of 8.716 inch (221.39 mm). Made from Music Wire with a 0.029-inch wire diameter (0.74 mm), the spring delivers a spring rate of 0.795 lb/inch (0.139 N/mm) through its 123.7 total coils with an initial tension of 0.55 lb (2.447 N). The spring supports a maximum load of 4.3 lb (19.127 N) at full extension with a body length of 3.616 inch (91.85 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

244461
Product Extension OD 0.25 in, Length 4 in, Music Wire
Product Extension OD 6.35 mm, Length 101.6 mm, Music Wire
Part Number LE 029C 13 M
Series Standard Extension Series (inch)
Outside Diameter (inch) 0.25
Outside Diameter (cm) 0.635
Outside Diameter (mm) 6.35
Wire Diameter (inch) 0.029
Wire Diameter (cm) 0.074
Wire Diameter (mm) 0.74
Max Load (gm) 1950.5
Max Load (lb) 4.3
Max Load (kg) 1.9505
Max Load (N) 19.127
Rate (gm/cm) 142
Rate (gm/mm) 14.2
Rate (kg/cm) 0.142
Rate (kg/mm) 0.0142
Rate (lb/in) 0.795
Rate (N/cm) 1.39
Rate (N/mm) 0.139
Max Extended Length (cm) 22.139
Max Extended Length (in) 8.716
Max Extended Length (mm) 221.39
Initial Tension (gm) 249.5
Initial Tension (kg): 0.2495
Initial Tension (lb) 0.55
Initial Tension (N) 2.447
Free Length (cm) 10.16
Free Length (inch) 4
Free Length (mm) 101.6
Material Music Wire
Loop Inside Diameter (cm) 0.488
Loop Inside Diameter (in) 0.192
Loop Inside Diameter (mm) 4.88
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.029 0.25 0.005 4 0.08 123.7 0.55 0.11 0.795 0.0795 8.716 4.3 0.029 3.616 Random 0.25 0.005 4 0.08 123.7 0.55 0.11 0.795 0.0795 8.716 4.3
Default View
Side view
Top view
Quantity Price
1 - 19 $9.210
20 - 49 $5.600
50 - 99 $2.960
100 - 199 $1.870
200 - 299 $1.640
300 - 399 $1.537
400 - 499 $1.464
500 - 599 $1.405
600 - 699 $1.361
700 - 799 $1.321
800 - 899 $1.287
900 - 999 $1.260
1000 $1.240

Why Choose Lee Spring?

large selection of springs

Selection

25,000+ products
available, plus custom
products made to your specification.

FREE Standard Ground Shipping

on Stock Springs in the Continental United States

FREE Plating

on all Music Wire Stock Springs

FREE Grinding

on all Standard Stock Compression Springs

in stock springs

In Stock

Springs ready to ship
today.

Expert Engineering Assistance

on Stock and Custom Springs

Certificate of Compliance

on all Stock Springs and Custom Springs

Guaranteed RoHS Compliance

on all Stock Springs

engineering and customer service support

Support

Engineering and
Customer Service teams ready to assist.

Live Customer Service Support

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

Quick Catalog Request Form

Social Icon

  • facebook
  • facebook
  • linkedin
  • linkedin
  • twitter
  • twitter
  • facebook
  • facebook
  • linkedin
  • linkedin
  • twitter
  • twitter

LeeSpring