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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LC 047DE 21M

Cost
$0.00
$0.00
Price
$0.00
Weight
0.02 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
37.010
Product Series
Published Stock Code
LC047DE21M
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
1.97
Rate (kg/cm)
2.01
Rate (lb/in)
11.24
Rate (gm/mm)
200.64
Weight per Item (lb)
0.02
Material Specification
ASTM A228
Free Length (cm)
7.620
Free Length (inch)
3.000
Free Length (mm)
76.200
Free Length - Build Spec (in)
3.00
Free Length Tolerance (cm)
0.27
Free Length Tolerance (in)
0.11
Free Length Tolerance (mm)
2.67
Free Length Tolerance - Build Spec (in)
0.11
Hole Diameter (cm)
0.83
Hole Diameter (inch)
0.33
Hole Diameter (mm)
8.33
Inside Diameter (cm)
0.55
Inside Diameter (in)
0.22
Inside Diameter (mm)
5.54
Outside Diameter (cm)
0.792
Outside Diameter (in)
0.31
Outside Diameter (mm)
7.92
Outside Diameter - Build Spec (in)
0.31
Rate (gm/cm)
2006.40
Rate (kg/mm)
0.20
Rate (N/cm)
19.68
Rate - Build Spec (lb/in)
11.24
Rate Tolerance (gm/cm)
200.72
Rate Tolerance (gm/mm)
20.07
Rate Tolerance (kg/cm)
0.20
Rate Tolerance (kg/mm)
0.02
Rate Tolerance (lb/in)
1.12
Rate Tolerance (N/cm)
1.97
Rate Tolerance (N/mm)
0.20
Rate Tolerance - Build Spec (lb/in)
1.12
Rod Diameter (cm)
0.53
Rod Diameter (inch)
0.21
Rod Diameter (mm)
5.28
Solid Height (cm)
4.55
Solid Height (inch)
1.79
Solid Height (mm)
45.50
Total Coils - Build Spec
37.01
Wire Diameter (cm)
0.12
Wire Diameter (inch)
0.05
Wire Diameter (mm)
1.19
Wire Diameter - Build Spec (in)
0.05
Hole Diameter - Build Spec. (in)
0.33
Rod Diameter - Build Spec. (in)
0.21
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)
1.79
Material Short Description
MW
Load at Solid Height (lb)
13.28
Load at Solid Height - Build Spec. (lb)
13.28
Load at Solid Height (N)
59.08
Load at Solid Height (kg)
6.02
Load at Solid Height (gm)
6024.49
Active Coils - Build Spec.
35.01
Active Coils
35.01
Active Coils Tolerance - Build Spec.
Reference
Active Coils Tolerance
Reference
Product Series
Standard 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)
+/-0.02
Outside Diameter Tolerance (in)
+/-0.008
Outside Diameter Tolerance (mm)
+/-0.2
Outside Diameter Tolerance - Build Spec (in)
+/-0.008
Inside Diameter - Build Spec (in)
0.22
Outside Diameter Lower Tolerance (in)
0.01
Outside Diameter Upper Tolerance (in)
0.01
Outside Diameter Upper Tolerance (mm)
0.20
Outside Diameter Lower Tolerance (mm)
0.20
Model Code
LC

Standard Compression Series (inch) Compression Springs

Selection to Match Your Needs

Lee Spring LC 047DE 21M is a precision compression spring from the Standard Compression Series (inch), engineered for applications requiring reliable quality compression springs. This spring features an 0.312-inch outside diameter (7.92 mm) with a 0.328-inch hole diameter (8.33 mm) and extends to a free length of 3 inch (76.2 mm). Made from Music Wire with a 0.047-inch wire diameter (1.19 mm), the spring delivers a spring rate of 11.235 lb/inch (1.968 N/mm) through its 35.01 active coils out of 37.01 total coils for predictable deflection behavior. The spring compresses to a solid height of 1.792 inch (45.5 mm) while supporting a maximum load of 13.282 lb (59.08 N) at full compression. The spring has Squared and Ground ends and a Zinc Plate and Bake per ASTM B633 finish for optimal performance.

About the Standard Compression Spring Series

The Lee Spring Standard Compression Spring line includes a wide range of size and rate combinations. Selections are sorted in ascending order to mating hole/bore diameter sizes. Standard Compression Springs are available in both standard and metric series. Standard 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 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 Standard Compression Springs feature squared and ground 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. The ground ends provide flat bearing surfaces and additional stability.

Standard 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

351401
Product Compression OD 0.312 in, Length 3 in, Music Wire
Product Compression OD 7.92 mm, Length 76.2 mm, Music Wire
Part Number LC 047DE 21M
Series Standard Compression Series (inch)
Outside Diameter (inch) 0.312
Outside Diameter (cm) 0.792
Outside Diameter (mm) 7.92
Hole Diameter (inch) 0.328
Hole Diameter (cm) 0.833
Hole Diameter (mm) 8.33
Rod Diameter (inch) 0.208
Rod Diameter (cm) 0.528
Rod Diameter (mm) 5.28
Free Length (inch) 3
Free Length (cm) 7.62
Free Length (mm) 76.2
Rate (gm/mm) 200.64
Rate (kg/cm) 2.006
Rate (kg/mm) 0.2006
Rate (lb/inch) 11.235
Rate (gm/cm) 2006.4
Rate (N/cm) 19.68
Rate (N/mm) 1.968
Solid Height (inch) 1.792
Solid Height (cm) 4.55
Solid Height (mm) 45.5
Wire Diameter (inch) 0.047
Wire Diameter (cm) 0.119
Wire Diameter (mm) 1.19
Material Music Wire
Load at Solid Height (gm) 6024.49
Load at Solid Height (kg) 6.024
Load at Solid Height (lb) 13.282
Load at Solid Height (N) 59.08
Ends Squared and Ground
Active Coils 35.01
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
Total Coils 37.01
0.047 0.312 0.008 0.008 0.328 0.208 3 0.105 37.01 11.235 1.124 1.7915 13.282 0.047 3 0.312 1.19 7.92 0.2 8.33 5.28 76.2 2.667 1.968 45.5 59.08
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Quantity Price
1 - 19 $8.310
20 - 49 $5.040
50 - 99 $2.610
100 - 199 $1.590
200 - 299 $1.266
300 - 399 $1.155
400 - 499 $1.053
500 - 599 $0.966
600 - 699 $0.889
700 - 799 $0.822
800 - 899 $0.766
900 - 999 $0.723
1000 $0.690

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