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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CI 013EG 12S

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
16.640
Product Series
Published Stock Code
CI013EG12S
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.05
Rate (kg/cm)
0.05
Rate (lb/in)
0.28
Rate (gm/mm)
5.05
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
3.810
Free Length (inch)
1.500
Free Length (mm)
38.100
Free Length - Build Spec (in)
1.50
Free Length Tolerance (cm)
0.13
Free Length Tolerance (in)
0.05
Free Length Tolerance (mm)
1.35
Free Length Tolerance - Build Spec (in)
0.05
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)
4.88
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)
50.50
Rate (kg/mm)
0.01
Rate (N/cm)
0.50
Rate - Build Spec (lb/in)
0.28
Rate Tolerance (gm/cm)
5.00
Rate Tolerance (gm/mm)
0.50
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)
0.00
Rate Tolerance - Build Spec (lb/in)
0.03
Rod Diameter (cm)
0.47
Rod Diameter (inch)
0.18
Rod Diameter (mm)
4.65
Solid Height (cm)
0.60
Solid Height (inch)
0.24
Solid Height (mm)
6.00
Total Coils - Build Spec
16.64
Wire Diameter (cm)
0.03
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.33
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)
0.24
Material Short Description
SS
Load at Solid Height (lb)
0.36
Load at Solid Height - Build Spec. (lb)
0.36
Load at Solid Height (N)
1.58
Load at Solid Height (kg)
0.16
Load at Solid Height (gm)
161.25
Active Coils - Build Spec.
14.64
Active Coils
14.64
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 013EG 12S 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 1.5 inch (38.1 mm), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Stainless Steel with a 0.013-inch wire diameter (0.33 mm), the spring delivers a spring rate of 0.283 lb/inch (0.05 N/mm) through its 14.64 active coils out of 16.64 total coils for predictable deflection behavior. The spring compresses to a solid height of 0.236 inch (6 mm) while supporting a maximum load of 0.356 lb (1.58 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

298941
Product Compression OD 0.218 in, Length 1.5 in, Stainless Steel
Product Compression OD 5.54 mm, Length 38.1 mm, Stainless Steel
Part Number CI 013EG 12S
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) 0.183
Rod Diameter (cm) 0.465
Rod Diameter (mm) 4.65
Free Length (inch) 1.5
Free Length (cm) 3.81
Free Length (mm) 38.1
Rate (gm/mm) 5.05
Rate (kg/cm) 0.051
Rate (kg/mm) 0.0051
Rate (lb/inch) 0.283
Rate (gm/cm) 50.5
Rate (N/cm) 0.5
Rate (N/mm) 0.05
Solid Height (inch) 0.236
Solid Height (cm) 0.6
Solid Height (mm) 6
Wire Diameter (inch) 0.013
Wire Diameter (cm) 0.033
Wire Diameter (mm) 0.33
Material Stainless Steel
Load at Solid Height (gm) 161.25
Load at Solid Height (kg) 0.161
Load at Solid Height (lb) 0.356
Load at Solid Height (N) 1.58
Ends Squared
Active Coils 14.64
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 16.64
0.013 0.218 0.003 0.005 0.234 0.183 1.5 0.053 16.64 0.283 0.028 0.2362 0.356 0.013 1.5 0.218 0.33 5.54 0.08 5.94 4.65 38.1 1.346 0.05 6 1.58
Default View
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Quantity Price
1 - 19 $8.570
20 - 49 $5.170
50 - 99 $2.720
100 - 199 $1.690
200 - 299 $1.297
300 - 399 $1.171
400 - 499 $1.053
500 - 599 $0.953
600 - 699 $0.865
700 - 799 $0.787
800 - 899 $0.725
900 - 999 $0.675
1000 $0.635

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