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Specifications

 

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Physical Dimension

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Load

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LHL 375D 7B

Cost
$0.00
$0.00
Price
$0.00
Weight
0.04 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Orange Powder Coat
Material
Music Wire
Total Coils
42.590
Product Series
Published Stock Code
LHL375D7B
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
7.18
Rate (kg/cm)
7.32
Rate (lb/in)
41.00
Rate (gm/mm)
732.18
Weight per Item (lb)
0.04
Material Specification
ASTM A228
Free Length (cm)
12.700
Free Length (inch)
5.000
Free Length (mm)
127.000
Free Length - Build Spec (in)
5.00
Free Length Tolerance (cm)
0.44
Free Length Tolerance (in)
0.18
Free Length Tolerance (mm)
4.45
Free Length Tolerance - Build Spec (in)
0.18
Hole Diameter (cm)
0.95
Hole Diameter (inch)
0.38
Hole Diameter (mm)
9.53
Inside Diameter (cm)
0.54
Inside Diameter (in)
0.21
Inside Diameter (mm)
5.41
Outside Diameter (cm)
0.902
Outside Diameter (in)
0.36
Outside Diameter (mm)
9.02
Outside Diameter - Build Spec (in)
0.36
Rate (gm/cm)
7321.80
Rate (kg/mm)
0.73
Rate (N/cm)
71.80
Rate - Build Spec (lb/in)
41.00
Rate Tolerance (gm/cm)
732.18
Rate Tolerance (gm/mm)
73.22
Rate Tolerance (kg/cm)
0.73
Rate Tolerance (kg/mm)
0.07
Rate Tolerance (lb/in)
4.10
Rate Tolerance (N/cm)
7.18
Rate Tolerance (N/mm)
0.72
Rate Tolerance - Build Spec (lb/in)
4.10
Rod Diameter (cm)
0.48
Rod Diameter (inch)
0.19
Rod Diameter (mm)
4.78
Solid Height (cm)
8.64
Solid Height (inch)
3.40
Solid Height (mm)
86.36
Total Coils - Build Spec
42.59
Wire Diameter (cm)
0.18
Wire Diameter (inch)
0.07
Wire Diameter (mm)
1.80
Wire Diameter - Build Spec (in)
0.07
Hole Diameter - Build Spec. (in)
0.38
Rod Diameter - Build Spec. (in)
0.19
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)
3.40
Material Short Description
MW
Load at Solid Height (lb)
81.03
Load at Solid Height - Build Spec. (lb)
81.03
Load at Solid Height (N)
360.44
Load at Solid Height (kg)
36.76
Load at Solid Height (gm)
36755.20
Active Coils - Build Spec.
40.59
Active Coils
40.59
Active Coils Tolerance - Build Spec.
Reference
Active Coils Tolerance
Reference
Product Series
HEFTY™ Die Spring
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
color
Orange
Inside Diameter Tolerance - Build Spec (in)
Reference
Outside Diameter Tolerance (cm)
Reference
Outside Diameter Tolerance (in)
Reference
Outside Diameter Tolerance (mm)
Reference
Outside Diameter Tolerance - Build Spec (in)
Reference
Inside Diameter - Build Spec (in)
0.21
Outside Diameter Lower Tolerance (in)
0.00
Outside Diameter Upper Tolerance (in)
0.00
Outside Diameter Upper Tolerance (mm)
0.04
Outside Diameter Lower Tolerance (mm)
0.04
Model Code
LHL

HEFTY™ Die Spring Compression Springs

Heavy Duty Compression Springs

Lee Spring LHL 375D 7B is a heavy-duty die compression spring from the HEFTY™ Die Spring series, specifically engineered for demanding industrial applications requiring durabiliy and substantial load capacity. This spring features an 0.355-inch outside diameter (9.02 mm) with a 0.375-inch hole diameter (9.53 mm) and extends to a free length of 5 inch (127 mm), making it ideal for stamping and die applications. Made from Music Wire with a 0.071-inch wire diameter (1.8 mm), the spring delivers a spring rate of 41 lb/inch (7.18 N/mm) through its 40.59 active coils out of 42.59 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 3.4 inch (86.36 mm) while supporting a maximum load of 81.03 lb (360.44 N) at full compression. The spring has Squared and Ground ends and a Orange Powder Coat finish for optimal die spring performance.

About the HEFTY™ Die Spring Series

HEFTY™ Die Springs offer you the economy of round wire and the durability of chrome silicon or music wire ideally suited for any high stress, heavy load application. Great for many applications such as clutches, brakes, farm machinery and aircraft mechanisms. Available in five different types with different load ratings to fit standard diameters.

HEFTY™ Die Spring 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

415791
Product Compression OD 0.355 in, Length 5 in, Music Wire
Product Compression OD 9.02 mm, Length 127 mm, Music Wire
Part Number LHL 375D 7B
Series HEFTY™ Die Spring
Outside Diameter (inch) 0.355
Outside Diameter (cm) 0.902
Outside Diameter (mm) 9.02
Hole Diameter (inch) 0.375
Hole Diameter (cm) 0.953
Hole Diameter (mm) 9.53
Rod Diameter (inch) 0.188
Rod Diameter (cm) 0.478
Rod Diameter (mm) 4.78
Free Length (inch) 5
Free Length (cm) 12.7
Free Length (mm) 127
Rate (gm/mm) 732.18
Rate (kg/cm) 7.322
Rate (kg/mm) 0.7322
Rate (lb/inch) 41
Rate (gm/cm) 7321.8
Rate (N/cm) 71.8
Rate (N/mm) 7.18
Solid Height (inch) 3.4
Solid Height (cm) 8.636
Solid Height (mm) 86.36
Wire Diameter (inch) 0.071
Wire Diameter (cm) 0.18
Wire Diameter (mm) 1.8
Material Music Wire
Load at Solid Height (gm) 36755.2
Load at Solid Height (kg) 36.755
Load at Solid Height (lb) 81.03
Load at Solid Height (N) 360.44
Ends Squared and Ground
Active Coils 40.59
Direction of Wind Factory Option
Finish Orange Powder Coat
Total Coils 42.59
0.071 0.355 0.001 0.001 0.375 0.188 5 0.175 42.59 41 4.1 3.4 81.03 0.071 5 0.355 1.8 9.02 0.04 9.53 4.78 127 4.445 7.18 86.36 360.44
Default View
Side view
Top view
Quantity Price
1 - 24 $5.510
25 - 49 $4.850
50 - 99 $4.530
100 - 199 $3.870
200 - 299 $3.173
300 - 399 $2.898
400 - 499 $2.657
500 - 599 $2.451
600 - 699 $2.281
700 - 799 $2.141
800 - 899 $2.040
900 - 999 $1.972
1000 $1.938

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