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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CI 012EG 13S

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Squared
Finish
Passivate per ASTM A967
Material
Stainless Steel
Total Coils
12.140
Product Series
Published Stock Code
CI012EG13S
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.05
Rate (kg/cm)
0.05
Rate (lb/in)
0.29
Rate (gm/mm)
5.21
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
4.445
Free Length (inch)
1.750
Free Length (mm)
44.450
Free Length - Build Spec (in)
1.75
Free Length Tolerance (cm)
0.16
Free Length Tolerance (in)
0.06
Free Length Tolerance (mm)
1.58
Free Length Tolerance - Build Spec (in)
0.06
Hole Diameter (cm)
0.59
Hole Diameter (inch)
0.23
Hole Diameter (mm)
5.94
Inside Diameter (cm)
0.49
Inside Diameter (in)
0.19
Inside Diameter (mm)
4.93
Outside Diameter (cm)
0.554
Outside Diameter (in)
0.22
Outside Diameter (mm)
5.54
Outside Diameter - Build Spec (in)
0.22
Rate (gm/cm)
52.10
Rate (kg/mm)
0.01
Rate (N/cm)
0.51
Rate - Build Spec (lb/in)
0.29
Rate Tolerance (gm/cm)
5.18
Rate Tolerance (gm/mm)
0.52
Rate Tolerance (kg/cm)
0.01
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.03
Rate Tolerance (N/cm)
0.05
Rate Tolerance (N/mm)
0.01
Rate Tolerance - Build Spec (lb/in)
0.03
Rod Diameter (cm)
0.46
Rod Diameter (inch)
0.18
Rod Diameter (mm)
4.60
Solid Height (cm)
0.40
Solid Height (inch)
0.16
Solid Height (mm)
4.01
Total Coils - Build Spec
12.14
Wire Diameter (cm)
0.03
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.30
Wire Diameter - Build Spec (in)
0.01
Hole Diameter - Build Spec. (in)
0.23
Rod Diameter - Build Spec. (in)
0.18
Rod Diameter Tolerance - Build Spec. (in)
MIN
Rod Diameter Tolerance (in)
MIN
Rod Diameter Tolerance (mm)
MIN
Rod Diameter Tolerance (cm)
MIN
Solid Height - Build Spec. (in)
0.16
Material Short Description
SS
Load at Solid Height (lb)
0.47
Load at Solid Height - Build Spec. (lb)
0.47
Load at Solid Height (N)
2.07
Load at Solid Height (kg)
0.21
Load at Solid Height (gm)
211.38
Active Coils - Build Spec.
10.14
Active Coils
10.14
Active Coils Tolerance - Build Spec.
Reference
Active Coils Tolerance
Reference
Product Series
Instrument Compression Series (inch)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Inside Diameter Tolerance - Build Spec (in)
Reference
Outside Diameter Tolerance (cm)
+0.008/-0.013
Outside Diameter Tolerance (in)
+0.003/-0.005
Outside Diameter Tolerance (mm)
+0.08/-0.13
Outside Diameter Tolerance - Build Spec (in)
+0.003/-0.005
Inside Diameter - Build Spec (in)
0.19
Outside Diameter Lower Tolerance (in)
0.01
Outside Diameter Upper Tolerance (in)
0.00
Outside Diameter Upper Tolerance (mm)
0.08
Outside Diameter Lower Tolerance (mm)
0.13
Model Code
CI

Instrument Compression Series (inch) Compression Springs

Precision Springs for Precision Products .

Lee Spring CI 012EG 13S is a precision compression spring from the Instrument Compression Series (inch), engineered for applications requiring reliable performance in moderate-load scenarios. This spring features an 0.218-inch outside diameter (5.54 mm) with a 0.234-inch hole diameter (5.94 mm) and extends to a free length of 1.75 inch (44.45 mm), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Stainless Steel with a 0.012-inch wire diameter (0.3 mm), the spring delivers a spring rate of 0.292 lb/inch (0.051 N/mm) through its 10.14 active coils out of 12.14 total coils for predictable deflection behavior. The spring compresses to a solid height of 0.158 inch (4.01 mm) while supporting a maximum load of 0.466 lb (2.07 N) at full compression. The spring has Squared ends and a Passivate per ASTM A967 finish for optimal performance.

About the Compression Spring Instrument Series

The Lee 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 to mating hole/bore diameter sizes. Instrument Compression Springs are available in both inch and metric series. 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. Lee Spring Instrument Compression Springs feature squared ends. A squared end, also called a closed end, is made by reducing the coil pitch of the ends to zero. Squareness influences how a force produced by the spring can be transferred to adjacent parts

Instrument Compression Series (inch) Compression 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

297681
Product Compression OD 0.218 in, Length 1.75 in, Stainless Steel
Product Compression OD 5.54 mm, Length 44.45 mm, Stainless Steel
Part Number CI 012EG 13S
Series Instrument Compression Series (inch)
Outside Diameter (inch) 0.218
Outside Diameter (cm) 0.554
Outside Diameter (mm) 5.54
Hole Diameter (inch) 0.234
Hole Diameter (cm) 0.594
Hole Diameter (mm) 5.94
Rod Diameter (inch) 0.181
Rod Diameter (cm) 0.46
Rod Diameter (mm) 4.6
Free Length (inch) 1.75
Free Length (cm) 4.445
Free Length (mm) 44.45
Rate (gm/mm) 5.21
Rate (kg/cm) 0.052
Rate (kg/mm) 0.0052
Rate (lb/inch) 0.292
Rate (gm/cm) 52.1
Rate (N/cm) 0.51
Rate (N/mm) 0.051
Solid Height (inch) 0.158
Solid Height (cm) 0.401
Solid Height (mm) 4.01
Wire Diameter (inch) 0.012
Wire Diameter (cm) 0.03
Wire Diameter (mm) 0.3
Material Stainless Steel
Load at Solid Height (gm) 211.38
Load at Solid Height (kg) 0.211
Load at Solid Height (lb) 0.466
Load at Solid Height (N) 2.07
Ends Squared
Active Coils 10.14
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 12.14
0.012 0.218 0.003 0.005 0.234 0.181 1.75 0.062 12.14 0.292 0.029 0.158 0.466 0.012 1.75 0.218 0.3 5.54 0.08 5.94 4.6 44.45 1.575 0.051 4.01 2.07
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Quantity Price
1 - 19 $8.570
20 - 49 $5.170
50 - 99 $2.720
100 - 199 $1.690
200 - 299 $1.298
300 - 399 $1.172
400 - 499 $1.055
500 - 599 $0.954
600 - 699 $0.866
700 - 799 $0.789
800 - 899 $0.727
900 - 999 $0.677
1000 $0.637

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