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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LEM120D 02 S

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Passivate per ASTM A967
Material
Stainless Steel
Total Coils
11.900
Published Stock Code
LEM120D02S
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
2.57
Rate (kg/cm)
2.62
Rate (lb/in)
14.66
Rate (gm/mm)
261.80
Weight per Item (lb)
0.01
Material Specification
ASTM A313
Free Length (cm)
3.000
Free Length (inch)
1.181
Free Length (mm)
30.000
Free Length - Build Spec (in)
1.18
Free Length Tolerance (cm)
0.09
Free Length Tolerance (in)
0.04
Free Length Tolerance (mm)
0.89
Free Length Tolerance - Build Spec (in)
0.04
Inside Diameter (cm)
0.71
Inside Diameter (in)
0.28
Inside Diameter (mm)
7.11
Outside Diameter (cm)
0.950
Outside Diameter (in)
0.37
Outside Diameter (mm)
9.50
Outside Diameter - Build Spec (in)
0.37
Outside Diameter Tolerance (cm)
0.03
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.25
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
2618.00
Rate (kg/mm)
0.26
Rate (N/cm)
25.67
Rate - Build Spec (lb/in)
14.66
Rate Tolerance (gm/cm)
261.80
Rate Tolerance (gm/mm)
26.18
Rate Tolerance (kg/cm)
0.26
Rate Tolerance (kg/mm)
0.03
Rate Tolerance (lb/in)
1.47
Rate Tolerance (N/cm)
2.57
Rate Tolerance (N/mm)
0.26
Rate Tolerance - Build Spec (lb/in)
1.47
Total Coils - Build Spec
11.90
Wire Diameter (cm)
0.12
Wire Diameter (inch)
0.05
Wire Diameter (mm)
1.19
Wire Diameter - Build Spec (in)
0.05
Material Short Description
SS
Product Series
Standard Extension Series (metric)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
1.28
Initial Tension (lb)
1.28
Initial Tension (N)
5.71
Initial Tension (kg)
0.58
Initial Tension (gm)
581.90
Initial Tension Tolerance - Build Spec. (lb)
0.26
Initial Tension Tolerance (lb)
0.26
Initial Tension Tolerance (N)
1.14
Initial Tension Tolerance (kg)
0.12
Initial Tension Tolerance (gm)
116.38
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
10.11
Max Load (lb)
10.11
Max Load (kg)
4.59
Max Load (gm)
4587.10
Max Extended Length - Build Spec. (in)
1.78
Max Extended Length (in)
1.78
Max Extended Length (mm)
45.24
Max Extended Length (cm)
4.52
Body Length - Build Spec. (in)
0.62
Body Length (in)
0.62
Body Length (mm)
15.77
Body Length (cm)
1.58
Loop Inside Diameter - Build Spec. (in)
0.28
Loop Inside Diameter (in)
0.28
Loop Inside Diameter (mm)
7.11
Loop Inside Diameter (cm)
0.71
Loop Position
Random
Loop Opening - Build Spec. (in)
0.05
Loop Opening (in)
0.05
Loop Opening (mm)
1.19
Loop Opening (cm)
0.12
Max Load (N)
44.98
Inside Diameter - Build Spec (in)
0.28
Model Code
LEM

Standard Extension Series (metric)

Selection to Match Your Needs

Lee Spring LEM120D 02 S is a precision extension spring from the Standard Extension Series (metric) series, engineered for applications requiring reliable quality extension springs. This spring features a 9.5-mm outside diameter (0.374 inch) with 7.11-mm loop inside diameter (0.28 inch) and extends from a free length of 30 mm (1.181 inch) to a maximum extended length of 45.24 mm (1.781 inch). Made from Stainless Steel with a 1.19-mm wire diameter (0.047 inch), the spring delivers a spring rate of 2.567 N/mm (14.66 lb/inch) through its 11.9 total coils with an initial tension of 5.706 N (1.2828 lb) for predictable extension behavior. The spring supports a maximum load of 44.983 N (10.1126 lb) at full extension with a body length of 15.77 mm (0.621 inch). The spring features Random loop position and Passivate per ASTM A967 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 (metric) 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

272031
Product Extension OD 0.374 in, Length 1.181 in, Stainless Steel
Product Extension OD 9.5 mm, Length 30 mm, Stainless Steel
Part Number LEM120D 02 S
Series Standard Extension Series (metric)
Outside Diameter (inch) 0.374
Outside Diameter (cm) 0.95
Outside Diameter (mm) 9.5
Wire Diameter (inch) 0.047
Wire Diameter (cm) 0.119
Wire Diameter (mm) 1.19
Max Load (gm) 4587.1
Max Load (lb) 10.1126
Max Load (kg) 4.5871
Max Load (N) 44.983
Rate (gm/cm) 2618
Rate (gm/mm) 261.8
Rate (kg/cm) 2.618
Rate (kg/mm) 0.2618
Rate (lb/in) 14.66
Rate (N/cm) 25.67
Rate (N/mm) 2.567
Max Extended Length (cm) 4.524
Max Extended Length (in) 1.781
Max Extended Length (mm) 45.24
Initial Tension (gm) 581.9
Initial Tension (kg) 0.5819
Initial Tension (lb) 1.2828
Initial Tension (N) 5.706
Free Length (cm) 3
Free Length (inch) 1.181
Free Length (mm) 30
Material Stainless Steel
Loop Inside Diameter (cm) 0.711
Loop Inside Diameter (in) 0.28
Loop Inside Diameter (mm) 7.11
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Passivate per ASTM A967
0.047 0.374 0.01 1.181 0.035 11.9 1.2828 0.25656 14.66 1.466 1.781 10.1126 0.047 0.621 Random 0.374 0.01 1.181 0.035 11.9 1.2828 0.25656 14.66 1.466 1.781 10.1126
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Quantity Price
1 - 19 $8.310
20 - 49 $5.040
50 - 99 $2.610
100 - 199 $1.590
200 - 299 $1.404
300 - 399 $1.351
400 - 499 $1.301
500 - 599 $1.259
600 - 699 $1.220
700 - 799 $1.187
800 - 899 $1.158
900 - 999 $1.136
1000 $1.122

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