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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CI 007A 08 M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Factory Option
Ends
Squared
Finish
Pre-coated with Tin
Material
Music Wire
Total Coils
24.160
Product Series
Published Stock Code
CI007A08M
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.23
Rate (kg/cm)
0.23
Rate (lb/in)
1.30
Rate (gm/mm)
23.22
Weight per Item (lb)
0.00
Material Specification
ASTM A228
Free Length (cm)
1.430
Free Length (inch)
0.563
Free Length (mm)
14.300
Free Length - Build Spec (in)
0.56
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
Hole Diameter (cm)
0.16
Hole Diameter (inch)
0.06
Hole Diameter (mm)
1.60
Inside Diameter (cm)
0.11
Inside Diameter (in)
0.04
Inside Diameter (mm)
1.09
Outside Diameter (cm)
0.145
Outside Diameter (in)
0.06
Outside Diameter (mm)
1.45
Outside Diameter - Build Spec (in)
0.06
Rate (gm/cm)
232.20
Rate (kg/mm)
0.02
Rate (N/cm)
2.28
Rate - Build Spec (lb/in)
1.30
Rate Tolerance (gm/cm)
23.22
Rate Tolerance (gm/mm)
2.32
Rate Tolerance (kg/cm)
0.02
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.13
Rate Tolerance (N/cm)
0.23
Rate Tolerance (N/mm)
0.02
Rate Tolerance - Build Spec (lb/in)
0.13
Rod Diameter (cm)
0.10
Rod Diameter (inch)
0.04
Rod Diameter (mm)
0.97
Solid Height (cm)
0.44
Solid Height (inch)
0.17
Solid Height (mm)
4.39
Total Coils - Build Spec
24.16
Wire Diameter (cm)
0.02
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.18
Wire Diameter - Build Spec (in)
0.01
Hole Diameter - Build Spec. (in)
0.06
Rod Diameter - Build Spec. (in)
0.04
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)
0.17
Material Short Description
MW
Load at Solid Height (lb)
0.50
Load at Solid Height - Build Spec. (lb)
0.50
Load at Solid Height (N)
2.22
Load at Solid Height (kg)
0.23
Load at Solid Height (gm)
226.80
Active Coils - Build Spec.
22.16
Active Coils
22.16
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)
0.04
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 007A 08 M 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 0.057-inch outside diameter (1.45 mm) with a 0.063-inch hole diameter (1.6 mm) and extends to a free length of 0.563 inch (14.3 mm), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Music Wire with a 0.007-inch wire diameter (0.18 mm), the spring delivers a spring rate of 1.3 lb/inch (0.228 N/mm) through its 22.16 active coils out of 24.16 total coils for predictable deflection behavior. The spring compresses to a solid height of 0.173 inch (4.39 mm) while supporting a maximum load of 0.5 lb (2.22 N) at full compression. The spring has Squared ends and a Pre-coated with Tin 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

287591
Product Compression OD 0.057 in, Length 0.563 in, Music Wire
Product Compression OD 1.45 mm, Length 14.3 mm, Music Wire
Part Number CI 007A 08 M
Series Instrument Compression Series (inch)
Outside Diameter (inch) 0.057
Outside Diameter (cm) 0.145
Outside Diameter (mm) 1.45
Hole Diameter (inch) 0.063
Hole Diameter (cm) 0.16
Hole Diameter (mm) 1.6
Rod Diameter (inch) 0.038
Rod Diameter (cm) 0.097
Rod Diameter (mm) 0.97
Free Length (inch) 0.563
Free Length (cm) 1.43
Free Length (mm) 14.3
Rate (gm/mm) 23.22
Rate (kg/cm) 0.232
Rate (kg/mm) 0.0232
Rate (lb/inch) 1.3
Rate (gm/cm) 232.2
Rate (N/cm) 2.28
Rate (N/mm) 0.228
Solid Height (inch) 0.173
Solid Height (cm) 0.439
Solid Height (mm) 4.39
Wire Diameter (inch) 0.007
Wire Diameter (cm) 0.018
Wire Diameter (mm) 0.18
Material Music Wire
Load at Solid Height (gm) 226.8
Load at Solid Height (kg) 0.227
Load at Solid Height (lb) 0.5
Load at Solid Height (N) 2.22
Ends Squared
Active Coils 22.16
Direction of Wind Factory Option
Finish Pre-coated with Tin
Total Coils 24.16
0.007 0.057 0.003 0.003 0.063 0.038 0.563 0.02 24.16 1.3 0.13 0.173 0.5 0.007 0.563 0.057 0.18 1.45 0.08 1.6 0.97 14.3 0.508 0.228 4.39 2.22
Default View
Side view
Top view
Quantity Price
1 - 19 $7.680
20 - 49 $4.650
50 - 99 $2.350
100 - 199 $1.510
200 - 299 $1.149
300 - 399 $1.031
400 - 499 $0.928
500 - 599 $0.836
600 - 699 $0.755
700 - 799 $0.683
800 - 899 $0.624
900 - 999 $0.579
1000 $0.543

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