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Specifications

 

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Physical Dimension

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LHL 750A 09

Cost
$0.00
$0.00
Price
$0.00
Weight
0.08 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Gray Powder Coat
Material
Music Wire
Total Coils
16.810
Product Series
Published Stock Code
LHL750A09
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
8.76
Rate (kg/cm)
8.93
Rate (lb/in)
50.00
Rate (gm/mm)
892.90
Weight per Item (lb)
0.08
Material Specification
ASTM A228
Free Length (cm)
10.160
Free Length (inch)
4.000
Free Length (mm)
101.600
Free Length - Build Spec (in)
4.00
Free Length Tolerance (cm)
0.36
Free Length Tolerance (in)
0.14
Free Length Tolerance (mm)
3.56
Free Length Tolerance - Build Spec (in)
0.14
Hole Diameter (cm)
1.91
Hole Diameter (inch)
0.75
Hole Diameter (mm)
19.05
Inside Diameter (cm)
1.30
Inside Diameter (in)
0.51
Inside Diameter (mm)
13.03
Outside Diameter (cm)
1.836
Outside Diameter (in)
0.72
Outside Diameter (mm)
18.36
Outside Diameter - Build Spec (in)
0.72
Rate (gm/cm)
8929.00
Rate (kg/mm)
0.89
Rate (N/cm)
87.57
Rate - Build Spec (lb/in)
50.00
Rate Tolerance (gm/cm)
892.90
Rate Tolerance (gm/mm)
89.29
Rate Tolerance (kg/cm)
0.89
Rate Tolerance (kg/mm)
0.09
Rate Tolerance (lb/in)
5.00
Rate Tolerance (N/cm)
8.76
Rate Tolerance (N/mm)
0.88
Rate Tolerance - Build Spec (lb/in)
5.00
Rod Diameter (cm)
0.95
Rod Diameter (inch)
0.38
Rod Diameter (mm)
9.53
Solid Height (cm)
4.52
Solid Height (inch)
1.78
Solid Height (mm)
45.21
Total Coils - Build Spec
16.81
Wire Diameter (cm)
0.27
Wire Diameter (inch)
0.11
Wire Diameter (mm)
2.67
Wire Diameter - Build Spec (in)
0.11
Hole Diameter - Build Spec. (in)
0.75
Rod Diameter - Build Spec. (in)
0.38
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)
1.78
Material Short Description
MW
Load at Solid Height (lb)
111.00
Load at Solid Height - Build Spec. (lb)
111.00
Load at Solid Height (N)
493.75
Load at Solid Height (kg)
50.35
Load at Solid Height (gm)
50349.60
Active Coils - Build Spec.
14.81
Active Coils
14.81
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
Gray
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)
0.51
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 750A 09 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 0.723-inch outside diameter (18.36 mm) with a 0.75-inch hole diameter (19.05 mm) and extends to a free length of 4 inch (101.6 mm), making it ideal for stamping and die applications. Made from Music Wire with a 0.105-inch wire diameter (2.67 mm), the spring delivers a spring rate of 50 lb/inch (8.757 N/mm) through its 14.81 active coils out of 16.81 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 1.78 inch (45.21 mm) while supporting a maximum load of 111 lb (493.75 N) at full compression. The spring has Squared and Ground ends and a Gray 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

417161
Product Compression OD 0.723 in, Length 4 in, Music Wire
Product Compression OD 18.36 mm, Length 101.6 mm, Music Wire
Part Number LHL 750A 09
Series HEFTY™ Die Spring
Outside Diameter (inch) 0.723
Outside Diameter (cm) 1.836
Outside Diameter (mm) 18.36
Hole Diameter (inch) 0.75
Hole Diameter (cm) 1.905
Hole Diameter (mm) 19.05
Rod Diameter (inch) 0.375
Rod Diameter (cm) 0.953
Rod Diameter (mm) 9.53
Free Length (inch) 4
Free Length (cm) 10.16
Free Length (mm) 101.6
Rate (gm/mm) 892.9
Rate (kg/cm) 8.929
Rate (kg/mm) 0.8929
Rate (lb/inch) 50
Rate (gm/cm) 8929
Rate (N/cm) 87.57
Rate (N/mm) 8.757
Solid Height (inch) 1.78
Solid Height (cm) 4.521
Solid Height (mm) 45.21
Wire Diameter (inch) 0.105
Wire Diameter (cm) 0.267
Wire Diameter (mm) 2.67
Material Music Wire
Load at Solid Height (gm) 50349.6
Load at Solid Height (kg) 50.35
Load at Solid Height (lb) 111
Load at Solid Height (N) 493.75
Ends Squared and Ground
Active Coils 14.81
Direction of Wind Factory Option
Finish Gray Powder Coat
Total Coils 16.81
0.105 0.723 0.001 0.001 0.75 0.375 4 0.14 16.81 50 5 1.78 111 0.105 4 0.723 2.67 18.36 0.04 19.05 9.53 101.6 3.556 8.757 45.21 493.75
Default View
Side view
Top view
Quantity Price
1 - 24 $6.820
25 - 49 $6.060
50 - 99 $5.310
100 - 199 $4.450
200 - 299 $3.663
300 - 399 $3.346
400 - 499 $3.066
500 - 599 $2.832
600 - 699 $2.630
700 - 799 $2.472
800 - 899 $2.357
900 - 999 $2.277
1000 $2.237

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