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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CI 012C 03 S316

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 Type 316
Total Coils
10.270
Product Series
Published Stock Code
CI012C03S316
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.75
Rate (kg/cm)
0.77
Rate (lb/in)
4.30
Rate (gm/mm)
76.79
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
0.953
Free Length (inch)
0.375
Free Length (mm)
9.530
Free Length - Build Spec (in)
0.38
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)
0.20
Inside Diameter (in)
0.08
Inside Diameter (mm)
1.98
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)
767.90
Rate (kg/mm)
0.08
Rate (N/cm)
7.53
Rate - Build Spec (lb/in)
4.30
Rate Tolerance (gm/cm)
76.79
Rate Tolerance (gm/mm)
7.68
Rate Tolerance (kg/cm)
0.08
Rate Tolerance (kg/mm)
0.01
Rate Tolerance (lb/in)
0.43
Rate Tolerance (N/cm)
0.75
Rate Tolerance (N/mm)
0.08
Rate Tolerance - Build Spec (lb/in)
0.43
Rod Diameter (cm)
0.19
Rod Diameter (inch)
0.07
Rod Diameter (mm)
1.85
Solid Height (cm)
0.35
Solid Height (inch)
0.14
Solid Height (mm)
3.53
Total Coils - Build Spec
10.27
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)
0.11
Rod Diameter - Build Spec. (in)
0.07
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)
0.14
Material Short Description
SS316
Load at Solid Height (lb)
1.04
Load at Solid Height - Build Spec. (lb)
1.04
Load at Solid Height (N)
4.63
Load at Solid Height (kg)
0.47
Load at Solid Height (gm)
472.20
Active Coils - Build Spec.
8.27
Active Coils
8.27
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)
0.08
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 012C 03 S316 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 0.375 inch (9.53 mm), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Stainless Steel Type 316 with a 0.012-inch wire diameter (0.3 mm), the spring delivers a spring rate of 4.3 lb/inch (0.753 N/mm) through its 8.27 active coils out of 10.27 total coils for predictable deflection behavior. The spring compresses to a solid height of 0.139 inch (3.53 mm) while supporting a maximum load of 1.041 lb (4.63 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

295531
Product Compression OD 0.102 in, Length 0.375 in, Stainless Steel Type 316
Product Compression OD 2.59 mm, Length 9.53 mm, Stainless Steel Type 316
Part Number CI 012C 03 S316
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) 0.073
Rod Diameter (cm) 0.185
Rod Diameter (mm) 1.85
Free Length (inch) 0.375
Free Length (cm) 0.953
Free Length (mm) 9.53
Rate (gm/mm) 76.79
Rate (kg/cm) 0.768
Rate (kg/mm) 0.0768
Rate (lb/inch) 4.3
Rate (gm/cm) 767.9
Rate (N/cm) 7.53
Rate (N/mm) 0.753
Solid Height (inch) 0.139
Solid Height (cm) 0.353
Solid Height (mm) 3.53
Wire Diameter (inch) 0.012
Wire Diameter (cm) 0.03
Wire Diameter (mm) 0.3
Material Stainless Steel Type 316
Load at Solid Height (gm) 472.2
Load at Solid Height (kg) 0.472
Load at Solid Height (lb) 1.041
Load at Solid Height (N) 4.63
Ends Squared
Active Coils 8.27
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 10.27
0.012 0.102 0.003 0.003 0.109 0.073 0.375 0.018 10.27 4.3 0.43 0.139 1.041 0.012 0.375 0.102 0.3 2.59 0.08 2.77 1.85 9.53 0.457 0.753 3.53 4.63
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Quantity Price
1 - 19 $9.210
20 - 49 $5.600
50 - 99 $2.960
100 - 199 $1.870
200 - 299 $1.561
300 - 399 $1.405
400 - 499 $1.267
500 - 599 $1.141
600 - 699 $1.032
700 - 799 $0.942
800 - 899 $0.863
900 - 999 $0.804
1000 $0.758

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