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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

CIM040BC 04M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.00 lb.
Direction of Wind
Right Hand
Ends
Squared
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
14.500
Product Series
Published Stock Code
CIM040BC04M
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
2.65
Rate (kg/cm)
2.70
Rate (lb/in)
15.12
Rate (gm/mm)
269.98
Weight per Item (lb)
0.00
Material Specification
ASTM A228
Free Length (cm)
1.000
Free Length (inch)
0.394
Free Length (mm)
10.000
Free Length - Build Spec (in)
0.39
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)
0.28
Hole Diameter (inch)
0.11
Hole Diameter (mm)
2.80
Inside Diameter (cm)
0.16
Inside Diameter (in)
0.06
Inside Diameter (mm)
1.60
Outside Diameter (cm)
0.240
Outside Diameter (in)
0.09
Outside Diameter (mm)
2.40
Outside Diameter - Build Spec (in)
0.09
Rate (gm/cm)
2699.80
Rate (kg/mm)
0.27
Rate (N/cm)
26.48
Rate - Build Spec (lb/in)
15.12
Rate Tolerance (gm/cm)
270.01
Rate Tolerance (gm/mm)
27.00
Rate Tolerance (kg/cm)
0.27
Rate Tolerance (kg/mm)
0.03
Rate Tolerance (lb/in)
1.51
Rate Tolerance (N/cm)
2.65
Rate Tolerance (N/mm)
0.26
Rate Tolerance - Build Spec (lb/in)
1.51
Rod Diameter (cm)
0.13
Rod Diameter (inch)
0.05
Rod Diameter (mm)
1.30
Solid Height (cm)
0.62
Solid Height (inch)
0.24
Solid Height (mm)
6.20
Total Coils - Build Spec
14.50
Wire Diameter (cm)
0.04
Wire Diameter (inch)
0.02
Wire Diameter (mm)
0.40
Wire Diameter - Build Spec (in)
0.02
Hole Diameter - Build Spec. (in)
0.11
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)
0.24
Material Short Description
MW
Load at Solid Height (lb)
2.16
Load at Solid Height - Build Spec. (lb)
2.16
Load at Solid Height (N)
9.63
Load at Solid Height (kg)
0.98
Load at Solid Height (gm)
981.59
Active Coils - Build Spec.
12.50
Active Coils
12.50
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)
+/-0.01
Outside Diameter Tolerance (in)
+/-0.0039
Outside Diameter Tolerance (mm)
+/-0.1
Outside Diameter Tolerance - Build Spec (in)
+/-0.0039
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)
0.10
Outside Diameter Lower Tolerance (mm)
0.10
Model Code
CIM

Instrument Compression Series (metric) Compression Springs

Precision Springs for Precision Products .

Lee Spring CIM040BC 04M 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 2.4-mm outside diameter (0.094 inch) with a 2.8-mm hole diameter (0.11 inch) and extends to a free length of 10 mm (0.394 inch), making it ideal for instruments and assemblies where consistent and precise compression characteristics are critical. Made from Music Wire with a 0.4-mm wire diameter (0.016 inch), the spring delivers a spring rate of 2.648 N/mm (15.118 lb/inch) through its 12.5 active coils out of 14.5 total coils for predictable deflection behavior. The spring compresses to a solid height of 6.2 mm (0.244 inch) while supporting a maximum load of 9.63 N (2.164 lb) at full compression. The spring has Squared ends and a Zinc Plate and Bake per ASTM B633 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

304181
Product Compression OD 0.094 in, Length 0.394 in, Music Wire
Product Compression OD 2.4 mm, Length 10 mm, Music Wire
Part Number CIM040BC 04M
Series Instrument Compression Series (metric)
Outside Diameter (inch) 0.094
Outside Diameter (cm) 0.24
Outside Diameter (mm) 2.4
Hole Diameter (inch) 0.11
Hole Diameter (cm) 0.28
Hole Diameter (mm) 2.8
Rod Diameter (inch) 0.051
Rod Diameter (cm) 0.13
Rod Diameter (mm) 1.3
Free Length (inch) 0.394
Free Length (cm) 1
Free Length (mm) 10
Rate (gm/mm) 269.98
Rate (kg/cm) 2.7
Rate (kg/mm) 0.27
Rate (lb/inch) 15.118
Rate (gm/cm) 2699.8
Rate (N/cm) 26.48
Rate (N/mm) 2.648
Solid Height (inch) 0.244
Solid Height (cm) 0.62
Solid Height (mm) 6.2
Wire Diameter (inch) 0.016
Wire Diameter (cm) 0.04
Wire Diameter (mm) 0.4
Material Music Wire
Load at Solid Height (gm) 981.59
Load at Solid Height (kg) 0.982
Load at Solid Height (lb) 2.164
Load at Solid Height (N) 9.63
Ends Squared
Active Coils 12.5
Direction of Wind Right Hand
Finish Zinc Plate and Bake per ASTM B633
Total Coils 14.5
0.016 0.094 0.0039 0.0039 0.11 0.051 0.394 0.02 14.5 15.118 1.512 0.244 2.164 0.016 0.394 0.094 0.4 2.4 0.1 2.8 1.3 10 0.508 2.648 6.2 9.63
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Quantity Price
1 - 19 $7.680
20 - 49 $4.650
50 - 99 $2.350
100 - 199 $1.510
200 - 299 $1.227
300 - 399 $1.122
400 - 499 $1.021
500 - 599 $0.935
600 - 699 $0.860
700 - 799 $0.797
800 - 899 $0.741
900 - 999 $0.696
1000 $0.666

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