.

NORTH AMERICA

EUROPE

ASIA

CENTRAL & SOUTH AMERICA

AFRICA & MIDDLE EAST

Pacific Rim

 
0 Items Total: $0.00
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 148N 03 M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.51 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
17.900
Published Stock Code
LE148N03M
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
1.65
Rate (kg/cm)
1.68
Rate (lb/in)
9.40
Rate (gm/mm)
167.90
Weight per Item (lb)
0.51
Material Specification
ASTM A228
Free Length (cm)
15.240
Free Length (inch)
6.000
Free Length (mm)
152.400
Free Length - Build Spec (in)
6.00
Free Length Tolerance (cm)
0.24
Free Length Tolerance (in)
0.09
Free Length Tolerance (mm)
2.36
Free Length Tolerance - Build Spec (in)
0.09
Inside Diameter (cm)
3.69
Inside Diameter (in)
1.45
Inside Diameter (mm)
36.93
Outside Diameter (cm)
4.445
Outside Diameter (in)
1.75
Outside Diameter (mm)
44.45
Outside Diameter - Build Spec (in)
1.75
Outside Diameter Tolerance (cm)
0.13
Outside Diameter Tolerance (in)
0.05
Outside Diameter Tolerance (mm)
1.27
Outside Diameter Tolerance - Build Spec (in)
0.05
Rate (gm/cm)
1679.00
Rate (kg/mm)
0.17
Rate (N/cm)
16.46
Rate - Build Spec (lb/in)
9.40
Rate Tolerance (gm/cm)
167.90
Rate Tolerance (gm/mm)
16.79
Rate Tolerance (kg/cm)
0.17
Rate Tolerance (kg/mm)
0.02
Rate Tolerance (lb/in)
0.94
Rate Tolerance (N/cm)
1.65
Rate Tolerance (N/mm)
0.16
Rate Tolerance - Build Spec (lb/in)
0.94
Total Coils - Build Spec
17.85
Wire Diameter (cm)
0.38
Wire Diameter (inch)
0.15
Wire Diameter (mm)
3.76
Wire Diameter - Build Spec (in)
0.15
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)
5.79
Initial Tension (lb)
5.79
Initial Tension (N)
25.76
Initial Tension (kg)
2.63
Initial Tension (gm)
2626.30
Initial Tension Tolerance - Build Spec. (lb)
1.16
Initial Tension Tolerance (lb)
1.16
Initial Tension Tolerance (N)
5.15
Initial Tension Tolerance (kg)
0.53
Initial Tension Tolerance (gm)
525.27
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
64.33
Max Load (lb)
64.33
Max Load (kg)
29.18
Max Load (gm)
29180.10
Max Extended Length - Build Spec. (in)
12.23
Max Extended Length (in)
12.23
Max Extended Length (mm)
310.59
Max Extended Length (cm)
31.06
Body Length - Build Spec. (in)
3.09
Body Length (in)
3.09
Body Length (mm)
78.54
Body Length (cm)
7.85
Loop Inside Diameter - Build Spec. (in)
1.45
Loop Inside Diameter (in)
1.45
Loop Inside Diameter (mm)
36.93
Loop Inside Diameter (cm)
3.69
Loop Position
Random
Loop Opening - Build Spec. (in)
0.15
Loop Opening (in)
0.15
Loop Opening (mm)
3.76
Loop Opening (cm)
0.38
Max Load (N)
286.15
Inside Diameter - Build Spec (in)
1.45
Model Code
LE

Extension Spring: OD 1.75 in, FL 6 in, Music Wire

Standard Extension Series (inch)

Selection to Match Your Needs

Lee Spring LE 148N 03 M is a precision extension spring from the Standard Extension Series (inch), engineered for applications requiring reliable quality extension springs. This spring features a 1.75-inch outside diameter (44.45 mm) with 1.454-inch loop inside diameter (36.93 mm) and extends from a free length of 6 inch (152.4 mm) to a maximum extended length of 12.228 inch (310.59 mm). Made from Music Wire with a 0.148-inch wire diameter (3.76 mm), the spring delivers a spring rate of 9.4 lb/inch (1.646 N/mm) through its 17.9 total coils with an initial tension of 5.79 lb (25.755 N). The spring supports a maximum load of 64.33 lb (286.154 N) at full extension with a body length of 3.092 inch (78.54 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

267001
Product Extension OD 1.75 in, Length 6 in, Music Wire
Product Extension OD 44.45 mm, Length 152.4 mm, Music Wire
Part Number LE 148N 03 M
Series Standard Extension Series (inch)
Outside Diameter (inch) 1.75
Outside Diameter (cm) 4.445
Outside Diameter (mm) 44.45
Wire Diameter (inch) 0.148
Wire Diameter (cm) 0.376
Wire Diameter (mm) 3.76
Max Load (gm) 29180.1
Max Load (lb) 64.33
Max Load (kg) 29.1801
Max Load (N) 286.154
Rate (gm/cm) 1679
Rate (gm/mm) 167.9
Rate (kg/cm) 1.679
Rate (kg/mm) 0.1679
Rate (lb/in) 9.4
Rate (N/cm) 16.46
Rate (N/mm) 1.646
Max Extended Length (cm) 31.059
Max Extended Length (in) 12.228
Max Extended Length (mm) 310.59
Initial Tension (gm) 2626.3
Initial Tension (kg): 2.6263
Initial Tension (lb) 5.79
Initial Tension (N) 25.755
Free Length (cm) 15.24
Free Length (inch) 6
Free Length (mm) 152.4
Material Music Wire
Loop Inside Diameter (cm) 3.693
Loop Inside Diameter (in) 1.454
Loop Inside Diameter (mm) 36.93
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.148 1.75 0.05 6 0.093 17.9 5.79 1.158 9.4 0.94 12.228 64.33 0.148 3.092 Random 1.75 0.05 6 0.093 17.9 5.79 1.158 9.4 0.94 12.228 64.33
Default View
Side view
Top view
Quantity Price
1 - 19 $29.240
20 - 49 $20.420
50 - 99 $14.600
100 - 199 $11.250
200 - 299 $8.728
300 - 399 $7.790
400 - 499 $6.948
500 - 599 $6.197
600 - 699 $5.544
700 - 799 $4.981
800 - 899 $4.509
900 - 999 $4.135
1000 $3.856

Why Choose Lee Spring?

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

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

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