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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CIM025AA 05S

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
19.400
Product Series
Published Stock Code
CIM025AA05S
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
0.38
Rate (kg/cm)
0.39
Rate (lb/in)
2.19
Rate (gm/mm)
39.06
Weight per Item (lb)
0.00
Material Specification
ASTM A313
Free Length (cm)
1.250
Free Length (inch)
0.492
Free Length (mm)
12.500
Free Length - Build Spec (in)
0.49
Free Length Tolerance (cm)
0.04
Free Length Tolerance (in)
0.02
Free Length Tolerance (mm)
0.43
Free Length Tolerance - Build Spec (in)
0.02
Hole Diameter (cm)
0.21
Hole Diameter (inch)
0.08
Hole Diameter (mm)
2.13
Inside Diameter (cm)
0.15
Inside Diameter (in)
0.06
Inside Diameter (mm)
1.50
Outside Diameter (cm)
0.200
Outside Diameter (in)
0.08
Outside Diameter (mm)
2.00
Outside Diameter - Build Spec (in)
0.08
Rate (gm/cm)
390.60
Rate (kg/mm)
0.04
Rate (N/cm)
3.83
Rate - Build Spec (lb/in)
2.19
Rate Tolerance (gm/cm)
38.93
Rate Tolerance (gm/mm)
3.89
Rate Tolerance (kg/cm)
0.04
Rate Tolerance (kg/mm)
0.00
Rate Tolerance (lb/in)
0.22
Rate Tolerance (N/cm)
0.38
Rate Tolerance (N/mm)
0.04
Rate Tolerance - Build Spec (lb/in)
0.22
Rod Diameter (cm)
0.14
Rod Diameter (inch)
0.05
Rod Diameter (mm)
1.37
Solid Height (cm)
0.52
Solid Height (inch)
0.20
Solid Height (mm)
5.18
Total Coils - Build Spec
19.40
Wire Diameter (cm)
0.03
Wire Diameter (inch)
0.01
Wire Diameter (mm)
0.25
Wire Diameter - Build Spec (in)
0.01
Hole Diameter - Build Spec. (in)
0.08
Rod Diameter - Build Spec. (in)
0.05
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)
0.20
Material Short Description
SS
Load at Solid Height (lb)
0.63
Load at Solid Height - Build Spec. (lb)
0.63
Load at Solid Height (N)
2.80
Load at Solid Height (kg)
0.29
Load at Solid Height (gm)
285.77
Active Coils - Build Spec.
17.40
Active Coils
17.40
Active Coils Tolerance - Build Spec.
Reference
Active Coils Tolerance
Reference
Product Series
Instrument Compression Series (metric)
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)
0.06
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
CIM

Instrument Compression Series (metric) Compression Springs

Precision Springs for Precision Products .

Lee Spring CIM025AA 05S is a precision compression spring from the Instrument Compression Series (metric) series, engineered for applications requiring reliable performance in moderate-load scenarios. This spring features an 2-mm outside diameter (0.079 inch) with a 2.13-mm hole diameter (0.084 inch) and extends to a free length of 12.5 mm (0.492 inch), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Stainless Steel with a 0.25-mm wire diameter (0.01 inch), the spring delivers a spring rate of 0.383 N/mm (2.187 lb/inch) through its 17.4 active coils out of 19.4 total coils for predictable deflection behavior. The spring compresses to a solid height of 5.18 mm (0.204 inch) while supporting a maximum load of 2.8 N (0.63 lb) 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 (metric) 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

302251
Product Compression OD 0.079 in, Length 0.492 in, Stainless Steel
Product Compression OD 2 mm, Length 12.5 mm, Stainless Steel
Part Number CIM025AA 05S
Series Instrument Compression Series (metric)
Outside Diameter (inch) 0.079
Outside Diameter (cm) 0.2
Outside Diameter (mm) 2
Hole Diameter (inch) 0.084
Hole Diameter (cm) 0.213
Hole Diameter (mm) 2.13
Rod Diameter (inch) 0.054
Rod Diameter (cm) 0.137
Rod Diameter (mm) 1.37
Free Length (inch) 0.492
Free Length (cm) 1.25
Free Length (mm) 12.5
Rate (gm/mm) 39.06
Rate (kg/cm) 0.391
Rate (kg/mm) 0.0391
Rate (lb/inch) 2.187
Rate (gm/cm) 390.6
Rate (N/cm) 3.83
Rate (N/mm) 0.383
Solid Height (inch) 0.204
Solid Height (cm) 0.518
Solid Height (mm) 5.18
Wire Diameter (inch) 0.01
Wire Diameter (cm) 0.025
Wire Diameter (mm) 0.25
Material Stainless Steel
Load at Solid Height (gm) 285.77
Load at Solid Height (kg) 0.286
Load at Solid Height (lb) 0.63
Load at Solid Height (N) 2.8
Ends Squared
Active Coils 17.4
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 19.4
0.01 0.079 0.003 0.003 0.084 0.054 0.492 0.017 19.4 2.187 0.218 0.204 0.63 0.01 0.492 0.079 0.25 2 0.08 2.13 1.37 12.5 0.432 0.383 5.18 2.8
Default View
Side view
Top view
Quantity Price
1 - 19 $8.570
20 - 49 $5.170
50 - 99 $2.720
100 - 199 $1.690
200 - 299 $1.341
300 - 399 $1.222
400 - 499 $1.115
500 - 599 $1.016
600 - 699 $0.933
700 - 799 $0.860
800 - 899 $0.802
900 - 999 $0.753
1000 $0.714

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