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Specifications

 

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Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LC 051E 21 S

Cost
$0.00
$0.00
Price
$0.00
Weight
0.02 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Passivate per ASTM A967
Material
Stainless Steel
Total Coils
29.300
Product Series
Published Stock Code
LC051E21S
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
1.84
Rate (kg/cm)
1.88
Rate (lb/in)
10.50
Rate (gm/mm)
187.51
Weight per Item (lb)
0.02
Material Specification
ASTM A313
Free Length (cm)
8.890
Free Length (inch)
3.500
Free Length (mm)
88.900
Free Length - Build Spec (in)
3.50
Free Length Tolerance (cm)
0.32
Free Length Tolerance (in)
0.13
Free Length Tolerance (mm)
3.18
Free Length Tolerance - Build Spec (in)
0.13
Hole Diameter (cm)
0.95
Hole Diameter (inch)
0.38
Hole Diameter (mm)
9.53
Inside Diameter (cm)
0.66
Inside Diameter (in)
0.26
Inside Diameter (mm)
6.55
Outside Diameter (cm)
0.914
Outside Diameter (in)
0.36
Outside Diameter (mm)
9.14
Outside Diameter - Build Spec (in)
0.36
Rate (gm/cm)
1875.10
Rate (kg/mm)
0.19
Rate (N/cm)
18.39
Rate - Build Spec (lb/in)
10.50
Rate Tolerance (gm/cm)
187.51
Rate Tolerance (gm/mm)
18.75
Rate Tolerance (kg/cm)
0.19
Rate Tolerance (kg/mm)
0.02
Rate Tolerance (lb/in)
1.05
Rate Tolerance (N/cm)
1.84
Rate Tolerance (N/mm)
0.18
Rate Tolerance - Build Spec (lb/in)
1.05
Rod Diameter (cm)
0.63
Rod Diameter (inch)
0.25
Rod Diameter (mm)
6.25
Solid Height (cm)
3.91
Solid Height (inch)
1.54
Solid Height (mm)
39.09
Total Coils - Build Spec
29.30
Wire Diameter (cm)
0.13
Wire Diameter (inch)
0.05
Wire Diameter (mm)
1.30
Wire Diameter - Build Spec (in)
0.05
Hole Diameter - Build Spec. (in)
0.38
Rod Diameter - Build Spec. (in)
0.25
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)
1.54
Material Short Description
SS
Load at Solid Height (lb)
21.06
Load at Solid Height - Build Spec. (lb)
21.06
Load at Solid Height (N)
93.68
Load at Solid Height (kg)
9.55
Load at Solid Height (gm)
9553.27
Active Coils - Build Spec.
27.30
Active Coils
27.30
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)
0.26
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 051E 21 S is a precision compression spring from the Standard Compression Series (inch), engineered for applications requiring reliable quality compression springs. This spring features an 0.36-inch outside diameter (9.14 mm) with a 0.375-inch hole diameter (9.53 mm) and extends to a free length of 3.5 inch (88.9 mm). Made from Stainless Steel with a 0.051-inch wire diameter (1.3 mm), the spring delivers a spring rate of 10.5 lb/inch (1.839 N/mm) through its 27.3 active coils out of 29.3 total coils for predictable deflection behavior. The spring compresses to a solid height of 1.539 inch (39.09 mm) while supporting a maximum load of 21.061 lb (93.68 N) at full compression. The spring has Squared and Ground ends and a Passivate per ASTM A967 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

356271
Product Compression OD 0.36 in, Length 3.5 in, Stainless Steel
Product Compression OD 9.14 mm, Length 88.9 mm, Stainless Steel
Part Number LC 051E 21 S
Series Standard Compression Series (inch)
Outside Diameter (inch) 0.36
Outside Diameter (cm) 0.914
Outside Diameter (mm) 9.14
Hole Diameter (inch) 0.375
Hole Diameter (cm) 0.953
Hole Diameter (mm) 9.53
Rod Diameter (inch) 0.246
Rod Diameter (cm) 0.625
Rod Diameter (mm) 6.25
Free Length (inch) 3.5
Free Length (cm) 8.89
Free Length (mm) 88.9
Rate (gm/mm) 187.51
Rate (kg/cm) 1.875
Rate (kg/mm) 0.1875
Rate (lb/inch) 10.5
Rate (gm/cm) 1875.1
Rate (N/cm) 18.39
Rate (N/mm) 1.839
Solid Height (inch) 1.539
Solid Height (cm) 3.909
Solid Height (mm) 39.09
Wire Diameter (inch) 0.051
Wire Diameter (cm) 0.13
Wire Diameter (mm) 1.3
Material Stainless Steel
Load at Solid Height (gm) 9553.27
Load at Solid Height (kg) 9.553
Load at Solid Height (lb) 21.061
Load at Solid Height (N) 93.68
Ends Squared and Ground
Active Coils 27.3
Direction of Wind Factory Option
Finish Passivate per ASTM A967
Total Coils 29.3
0.051 0.36 0.008 0.008 0.375 0.246 3.5 0.125 29.3 10.5 1.05 1.539 21.061 0.051 3.5 0.36 1.3 9.14 0.2 9.53 6.25 88.9 3.175 1.839 39.09 93.68
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Quantity Price
1 - 19 $9.570
20 - 49 $5.810
50 - 99 $3.100
100 - 199 $1.960
200 - 299 $1.557
300 - 399 $1.419
400 - 499 $1.296
500 - 599 $1.184
600 - 699 $1.087
700 - 799 $1.006
800 - 899 $0.934
900 - 999 $0.879
1000 $0.838

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