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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CI 008C 04 S

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
9.090
Product Series
Published Stock Code
CI008C04S
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.15
Rate (kg/cm)
0.16
Rate (lb/in)
0.87
Rate (gm/mm)
15.54
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)
0.46
Free Length Tolerance - Build Spec (in)
0.02
Hole Diameter (cm)
0.28
Hole Diameter (inch)
0.11
Hole Diameter (mm)
2.77
Inside Diameter (cm)
0.22
Inside Diameter (in)
0.09
Inside Diameter (mm)
2.18
Outside Diameter (cm)
0.259
Outside Diameter (in)
0.10
Outside Diameter (mm)
2.59
Outside Diameter - Build Spec (in)
0.10
Rate (gm/cm)
155.40
Rate (kg/mm)
0.02
Rate (N/cm)
1.52
Rate - Build Spec (lb/in)
0.87
Rate Tolerance (gm/cm)
15.54
Rate Tolerance (gm/mm)
1.55
Rate Tolerance (kg/cm)
0.02
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.09
Rate Tolerance (N/cm)
0.15
Rate Tolerance (N/mm)
0.02
Rate Tolerance - Build Spec (lb/in)
0.09
Rod Diameter (cm)
0.20
Rod Diameter (inch)
0.08
Rod Diameter (mm)
1.98
Solid Height (cm)
0.21
Solid Height (inch)
0.08
Solid Height (mm)
2.06
Total Coils - Build Spec
9.09
Wire Diameter (cm)
0.02
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.20
Wire Diameter - Build Spec (in)
0.01
Hole Diameter - Build Spec. (in)
0.11
Rod Diameter - Build Spec. (in)
0.08
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)
0.08
Material Short Description
SS
Load at Solid Height (lb)
0.31
Load at Solid Height - Build Spec. (lb)
0.31
Load at Solid Height (N)
1.38
Load at Solid Height (kg)
0.14
Load at Solid Height (gm)
140.62
Active Coils - Build Spec.
7.09
Active Coils
7.09
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
Outside Diameter Tolerance (in)
+/-0.003
Outside Diameter Tolerance (mm)
+/-0.08
Outside Diameter Tolerance - Build Spec (in)
+/-0.003
Inside Diameter - Build Spec (in)
0.09
Outside Diameter Lower Tolerance (in)
0.00
Outside Diameter Upper Tolerance (in)
0.00
Outside Diameter Upper Tolerance (mm)
0.08
Outside Diameter Lower Tolerance (mm)
0.08
Model Code
CI

Instrument Compression Series (inch) Compression Springs

Precision Springs for Precision Products .

Lee Spring CI 008C 04 S 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 0.102-inch outside diameter (2.59 mm) with a 0.109-inch hole diameter (2.77 mm) and extends to a free length of 0.438 inch (11.13 mm), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Stainless Steel with a 0.008-inch wire diameter (0.2 mm), the spring delivers a spring rate of 0.87 lb/inch (0.152 N/mm) through its 7.09 active coils out of 9.09 total coils for predictable deflection behavior. The spring compresses to a solid height of 0.081 inch (2.06 mm) while supporting a maximum load of 0.31 lb (1.38 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

289431
Product Compression OD 0.102 in, Length 0.438 in, Stainless Steel
Product Compression OD 2.59 mm, Length 11.13 mm, Stainless Steel
Part Number CI 008C 04 S
Series Instrument Compression Series (inch)
Outside Diameter (inch) 0.102
Outside Diameter (cm) 0.259
Outside Diameter (mm) 2.59
Hole Diameter (inch) 0.109
Hole Diameter (cm) 0.277
Hole Diameter (mm) 2.77
Rod Diameter (inch) 0.078
Rod Diameter (cm) 0.198
Rod Diameter (mm) 1.98
Free Length (inch) 0.438
Free Length (cm) 1.113
Free Length (mm) 11.13
Rate (gm/mm) 15.54
Rate (kg/cm) 0.155
Rate (kg/mm) 0.0155
Rate (lb/inch) 0.87
Rate (gm/cm) 155.4
Rate (N/cm) 1.52
Rate (N/mm) 0.152
Solid Height (inch) 0.081
Solid Height (cm) 0.206
Solid Height (mm) 2.06
Wire Diameter (inch) 0.008
Wire Diameter (cm) 0.02
Wire Diameter (mm) 0.2
Material Stainless Steel
Load at Solid Height (gm) 140.62
Load at Solid Height (kg) 0.141
Load at Solid Height (lb) 0.31
Load at Solid Height (N) 1.38
Ends Squared
Active Coils 7.09
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 9.09
0.008 0.102 0.003 0.003 0.109 0.078 0.438 0.018 9.09 0.87 0.087 0.081 0.31 0.008 0.438 0.102 0.2 2.59 0.08 2.77 1.98 11.13 0.457 0.152 2.06 1.38
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Quantity Price
1 - 19 $8.570
20 - 49 $5.170
50 - 99 $2.720
100 - 199 $1.690
200 - 299 $1.315
300 - 399 $1.193
400 - 499 $1.088
500 - 599 $0.990
600 - 699 $0.908
700 - 799 $0.836
800 - 899 $0.776
900 - 999 $0.728
1000 $0.691

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