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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

EI 011AA 05S

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
34.300
Published Stock Code
EI011AA05S
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.31
Rate (kg/cm)
0.32
Rate (lb/in)
1.77
Rate (gm/mm)
31.60
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
1.270
Free Length (inch)
0.500
Free Length (mm)
12.700
Free Length - Build Spec (in)
0.50
Free Length Tolerance (cm)
0.05
Free Length Tolerance (in)
0.02
Free Length Tolerance (mm)
0.51
Free Length Tolerance - Build Spec (in)
0.02
Inside Diameter (cm)
0.14
Inside Diameter (in)
0.06
Inside Diameter (mm)
1.42
Outside Diameter (cm)
0.198
Outside Diameter (in)
0.08
Outside Diameter (mm)
1.98
Outside Diameter - Build Spec (in)
0.08
Outside Diameter Tolerance (cm)
0.01
Outside Diameter Tolerance (in)
0.00
Outside Diameter Tolerance (mm)
0.10
Outside Diameter Tolerance - Build Spec (in)
0.00
Rate (gm/cm)
316.00
Rate (kg/mm)
0.03
Rate (N/cm)
3.09
Rate - Build Spec (lb/in)
1.77
Rate Tolerance (gm/cm)
31.40
Rate Tolerance (gm/mm)
3.14
Rate Tolerance (kg/cm)
0.03
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.18
Rate Tolerance (N/cm)
0.31
Rate Tolerance (N/mm)
0.03
Rate Tolerance - Build Spec (lb/in)
0.18
Total Coils - Build Spec
34.25
Wire Diameter (cm)
0.03
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.28
Wire Diameter - Build Spec (in)
0.01
Material Short Description
SS
Product Series
Instrument Extension Series (inch)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
0.08
Initial Tension (lb)
0.08
Initial Tension (N)
0.33
Initial Tension (kg)
0.03
Initial Tension (gm)
34.00
Initial Tension Tolerance - Build Spec. (lb)
0.01
Initial Tension Tolerance (lb)
0.01
Initial Tension Tolerance (N)
0.06
Initial Tension Tolerance (kg)
0.01
Initial Tension Tolerance (gm)
6.35
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
0.86
Max Load (lb)
0.86
Max Load (kg)
0.39
Max Load (gm)
391.90
Max Extended Length - Build Spec. (in)
0.95
Max Extended Length (in)
0.95
Max Extended Length (mm)
24.05
Max Extended Length (cm)
2.41
Body Length - Build Spec. (in)
0.39
Body Length (in)
0.39
Body Length (mm)
9.86
Body Length (cm)
0.99
Loop Inside Diameter - Build Spec. (in)
0.06
Loop Inside Diameter (in)
0.06
Loop Inside Diameter (mm)
1.42
Loop Inside Diameter (cm)
0.14
Loop Position
Random
Loop Opening - Build Spec. (in)
0.01
Loop Opening (in)
0.01
Loop Opening (mm)
0.28
Loop Opening (cm)
0.03
Max Load (N)
3.84
Inside Diameter - Build Spec (in)
0.06
Model Code
EI

Instrument Extension Series (inch)

Precision Springs for Precision Products.

Lee Spring EI 011AA 05S is a precision extension spring from the Instrument Extension Series (inch) series, engineered for applications requiring reliable quality extension springs. This spring features a 0.078-inch outside diameter (1.98 mm) with 0.056-inch loop inside diameter (1.42 mm) and extends from a free length of 0.5 inch (12.7 mm) to a maximum extended length of 0.947 inch (24.05 mm). Made from Stainless Steel with a 0.011-inch wire diameter (0.28 mm), the spring delivers a spring rate of 1.767 lb/inch (0.309 N/mm) through its 34.3 total coils with an initial tension of 0.075 lb (0.334 N). The spring supports a maximum load of 0.864 lb (3.843 N) at full extension with a body length of 0.388 inch (9.86 mm). The spring features Random loop position and Passivate per ASTM A967 finish for optimal performance.

About the Extension Spring Instrument Series

The Lee Spring Extension Spring Instrument Series includes a wide range of size and rate combinations in a smaller, highly precise spring design. Selections are sorted in ascending order based on outside diameter. Instrument Series Extension Springs are available in both inch and metric sizes. Sizes range from outside diameters from .063" up to .157" and free lengths from .250" to 1.181". Inch 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 made from coated wire or 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.

Instrument 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

234721
Product Extension OD 0.078 in, Length 0.5 in, Stainless Steel
Product Extension OD 1.98 mm, Length 12.7 mm, Stainless Steel
Part Number EI 011AA 05S
Series Instrument Extension Series (inch)
Outside Diameter (inch) 0.078
Outside Diameter (cm) 0.198
Outside Diameter (mm) 1.98
Wire Diameter (inch) 0.011
Wire Diameter (cm) 0.028
Wire Diameter (mm) 0.28
Max Load (gm) 391.9
Max Load (lb) 0.864
Max Load (kg) 0.3919
Max Load (N) 3.843
Rate (gm/cm) 316
Rate (gm/mm) 31.6
Rate (kg/cm) 0.316
Rate (kg/mm) 0.0316
Rate (lb/in) 1.767
Rate (N/cm) 3.09
Rate (N/mm) 0.309
Max Extended Length (cm) 2.405
Max Extended Length (in) 0.947
Max Extended Length (mm) 24.05
Initial Tension (gm) 34
Initial Tension (kg) 0.034
Initial Tension (lb) 0.075
Initial Tension (N) 0.334
Free Length (cm) 1.27
Free Length (inch) 0.5
Free Length (mm) 12.7
Material Stainless Steel
Loop Inside Diameter (cm) 0.142
Loop Inside Diameter (in) 0.056
Loop Inside Diameter (mm) 1.42
Ends Standard Loops
Loop Position Random
Direction of Wind Factory Option
Finish Passivate per ASTM A967
0.011 0.078 0.004 0.5 0.02 34.3 0.075 0.014 1.767 0.176 0.947 0.864 0.011 0.388 Random 0.078 0.004 0.5 0.02 34.3 0.075 0.014 1.767 0.176 0.947 0.864
Default View
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Quantity Price
1 - 19 $9.210
20 - 49 $5.600
50 - 99 $2.960
100 - 199 $1.870
200 - 299 $1.541
300 - 399 $1.436
400 - 499 $1.343
500 - 599 $1.260
600 - 699 $1.188
700 - 799 $1.125
800 - 899 $1.070
900 - 999 $1.030
1000 $1.002

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