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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

EI 011AA 04S316

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Standard Loops
Finish
Ultrasonically Passivate with Citric Acid for 10 mins At 131 Deg F
Material
Stainless Steel Type 316
Total Coils
28.600
Published Stock Code
EI011AA04S316
Product Type
Extension Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.37
Rate (kg/cm)
0.38
Rate (lb/in)
2.12
Rate (gm/mm)
37.80
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
1.113
Free Length (inch)
0.438
Free Length (mm)
11.130
Free Length - Build Spec (in)
0.44
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)
378.00
Rate (kg/mm)
0.04
Rate (N/cm)
3.70
Rate - Build Spec (lb/in)
2.12
Rate Tolerance (gm/cm)
37.70
Rate Tolerance (gm/mm)
3.77
Rate Tolerance (kg/cm)
0.04
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.21
Rate Tolerance (N/cm)
0.37
Rate Tolerance (N/mm)
0.04
Rate Tolerance - Build Spec (lb/in)
0.21
Total Coils - Build Spec
28.61
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 316
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)
0.65
Max Load (lb)
0.65
Max Load (kg)
0.29
Max Load (gm)
293.90
Max Extended Length - Build Spec. (in)
0.71
Max Extended Length (in)
0.71
Max Extended Length (mm)
17.98
Max Extended Length (cm)
1.80
Body Length - Build Spec. (in)
0.33
Body Length (in)
0.33
Body Length (mm)
8.28
Body Length (cm)
0.83
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)
2.88
Inside Diameter - Build Spec (in)
0.06
Model Code
EI

Extension Spring: OD 0.078 in, FL 0.438 in, Stainless Steel Type 316

Instrument Extension Series (inch)

Precision Springs for Precision Products.

Lee Spring EI 011AA 04S316 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 0.438 inch (11.13 mm) to a maximum extended length of 0.708 inch (17.98 mm). Made from Stainless Steel Type 316 with a 0.011-inch wire diameter (0.28 mm), the spring delivers a spring rate of 2.115 lb/inch (0.37 N/mm) through its 28.6 total coils with an initial tension of 0.075 lb (0.334 N). The spring supports a maximum load of 0.648 lb (2.882 N) at full extension with a body length of 0.326 inch (8.28 mm). The spring features Random loop position and Ultrasonically Passivate with Citric Acid for 10 mins At 131 Deg F 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

234701
Product Extension OD 0.078 in, Length 0.438 in, Stainless Steel Type 316
Product Extension OD 1.98 mm, Length 11.13 mm, Stainless Steel Type 316
Part Number EI 011AA 04S316
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) 293.9
Max Load (lb) 0.648
Max Load (kg) 0.2939
Max Load (N) 2.882
Rate (gm/cm) 378
Rate (gm/mm) 37.8
Rate (kg/cm) 0.378
Rate (kg/mm) 0.0378
Rate (lb/in) 2.115
Rate (N/cm) 3.7
Rate (N/mm) 0.37
Max Extended Length (cm) 1.798
Max Extended Length (in) 0.708
Max Extended Length (mm) 17.98
Initial Tension (gm) 34
Initial Tension (kg) 0.034
Initial Tension (lb) 0.075
Initial Tension (N) 0.334
Free Length (cm) 1.113
Free Length (inch) 0.438
Free Length (mm) 11.13
Material Stainless Steel Type 316
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 Ultrasonically Passivate with Citric Acid for 10 mins At 131 Deg F
0.011 0.078 0.004 0.438 0.02 28.6 0.075 0.014 2.115 0.211 0.708 0.648 0.011 0.326 Random 0.078 0.004 0.438 0.02 28.6 0.075 0.014 2.115 0.211 0.708 0.648
Default View
Side view
Top view
Quantity Price
1 - 19 $11.290
20 - 49 $6.950
50 - 99 $3.840
100 - 199 $2.450
200 - 299 $2.318
300 - 399 $2.277
400 - 499 $2.244
500 - 599 $2.009
600 - 699 $1.818
700 - 799 $1.666
800 - 899 $1.538
900 - 999 $1.431
1000 $1.338

Why Choose Lee Spring?

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on Stock Springs in the Continental United States

FREE Plating

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Guaranteed RoHS Compliance

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at all Locations

Enhanced CAD Downloads

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Global Flexibility

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