.

NORTH AMERICA

EUROPE

ASIA

CENTRAL & SOUTH AMERICA

AFRICA & MIDDLE EAST

Pacific Rim

 
0 Items Total: $0.00
×
 
compression main view
compresssion side view
compression top view
3D
2D
Quantity
 

Add

Enter your details and we'll get started right away.

Most quotes are generated and emailed instantly. Large-volume requests are reviewed by our team and typically follow up within 1 business day.

 

Specifications

 

Download Spec Sheet

Imperial/Inches Metric
Physical Dimension

mm cm

Load

N kg gm

 
 

LHL 750C 17

Cost
$0.00
$0.00
Price
$0.00
Weight
0.48 lb.
Direction of Wind
Factory Option
Ends
Squared and Ground
Finish
Black Powder Coat
Material
Oil Tempered Chrome Silicon
Total Coils
51.860
Product Series
Published Stock Code
LHL750C17
Product Type
Compression Spring
Product Category
Stock
Revision
NR
Rate (N/mm)
12.61
Rate (kg/cm)
12.86
Rate (lb/in)
72.00
Rate (gm/mm)
1285.78
Weight per Item (lb)
0.48
Material Specification
ASTM A401
Free Length (cm)
30.480
Free Length (inch)
12.000
Free Length (mm)
304.800
Free Length - Build Spec (in)
12.00
Free Length Tolerance (cm)
0.64
Free Length Tolerance (in)
0.25
Free Length Tolerance (mm)
6.35
Free Length Tolerance - Build Spec (in)
0.25
Hole Diameter (cm)
1.91
Hole Diameter (inch)
0.75
Hole Diameter (mm)
19.05
Inside Diameter (cm)
1.09
Inside Diameter (in)
0.43
Inside Diameter (mm)
10.90
Outside Diameter (cm)
1.842
Outside Diameter (in)
0.73
Outside Diameter (mm)
18.42
Outside Diameter - Build Spec (in)
0.73
Rate (gm/cm)
12857.80
Rate (kg/mm)
1.29
Rate (N/cm)
126.10
Rate - Build Spec (lb/in)
72.00
Rate Tolerance (gm/cm)
1285.78
Rate Tolerance (gm/mm)
128.58
Rate Tolerance (kg/cm)
1.29
Rate Tolerance (kg/mm)
0.13
Rate Tolerance (lb/in)
7.20
Rate Tolerance (N/cm)
12.61
Rate Tolerance (N/mm)
1.26
Rate Tolerance - Build Spec (lb/in)
7.20
Rod Diameter (cm)
0.95
Rod Diameter (inch)
0.38
Rod Diameter (mm)
9.53
Solid Height (cm)
20.13
Solid Height (inch)
7.93
Solid Height (mm)
201.32
Total Coils - Build Spec
51.86
Wire Diameter (cm)
0.38
Wire Diameter (inch)
0.15
Wire Diameter (mm)
3.76
Wire Diameter - Build Spec (in)
0.15
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)
7.93
Material Short Description
OTCS
Load at Solid Height (lb)
293.30
Load at Solid Height - Build Spec. (lb)
293.30
Load at Solid Height (N)
1304.66
Load at Solid Height (kg)
133.04
Load at Solid Height (gm)
133041.00
Active Coils - Build Spec.
49.86
Active Coils
49.86
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
Black
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)
0.43
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 750C 17 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 0.725-inch outside diameter (18.42 mm) with a 0.75-inch hole diameter (19.05 mm) and extends to a free length of 12 inch (304.8 mm), making it ideal for stamping and die applications. Made from Oil Tempered Chrome Silicon with a 0.148-inch wire diameter (3.76 mm), the spring delivers a spring rate of 72 lb/inch (12.61 N/mm) through its 49.86 active coils out of 51.86 total coils, with Factory Option wind for predictable deflection behavior. The spring compresses to a solid height of 7.926 inch (201.32 mm) while supporting a maximum load of 293.3 lb (1304.66 N) at full compression. The spring has Squared and Ground ends and a Black 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

413681
Product Compression OD 0.725 in, Length 12 in, Oil Tempered Chrome Silicon
Product Compression OD 18.42 mm, Length 304.8 mm, Oil Tempered Chrome Silicon
Part Number LHL 750C 17
Series HEFTY™ Die Spring
Outside Diameter (inch) 0.725
Outside Diameter (cm) 1.842
Outside Diameter (mm) 18.42
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) 12
Free Length (cm) 30.48
Free Length (mm) 304.8
Rate (gm/mm) 1285.78
Rate (kg/cm) 12.858
Rate (kg/mm) 1.2858
Rate (lb/inch) 72
Rate (gm/cm) 12857.8
Rate (N/cm) 126.1
Rate (N/mm) 12.61
Solid Height (inch) 7.926
Solid Height (cm) 20.132
Solid Height (mm) 201.32
Wire Diameter (inch) 0.148
Wire Diameter (cm) 0.376
Wire Diameter (mm) 3.76
Material Oil Tempered Chrome Silicon
Load at Solid Height (gm) 133041
Load at Solid Height (kg) 133.041
Load at Solid Height (lb) 293.3
Load at Solid Height (N) 1304.66
Ends Squared and Ground
Active Coils 49.86
Direction of Wind Factory Option
Finish Black Powder Coat
Total Coils 51.86
0.148 0.725 0.001 0.001 0.75 0.375 12 0.25 51.86 72 7.2 7.926 293.3 0.148 12 0.725 3.76 18.42 0.04 19.05 9.53 304.8 6.35 12.61 201.32 1304.66
Default View
Side view
Top view
Quantity Price
1 - 24 $23.820
25 - 49 $21.470
50 - 99 $20.000
100 - 199 $18.000
200 - 299 $14.909
300 - 399 $13.618
400 - 499 $12.491
500 - 599 $11.521
600 - 699 $10.717
700 - 799 $10.075
800 - 899 $9.592
900 - 999 $9.265
1000 $9.109

Why Choose Lee Spring?

large selection of springs

Selection

25,000+ products
available, plus custom
products made to your specification.

FREE Standard Ground Shipping

on Stock Springs in the Continental United States

FREE Plating

on all Music Wire Stock Springs

FREE Grinding

on all Standard Stock Compression Springs

in stock springs

In Stock

Springs ready to ship
today.

Expert Engineering Assistance

on Stock and Custom Springs

Certificate of Compliance

on all Stock Springs and Custom Springs

Guaranteed RoHS Compliance

on all Stock Springs

engineering and customer service support

Support

Engineering and
Customer Service teams ready to assist.

Live Customer Service Support

at all Locations

Enhanced CAD Downloads

on Stock Springs Designs

Global Flexibility

allows Lee Spring to find solutions that meet your
geographic requirements wherever your business
takes you in the world

Quick Catalog Request Form

Social Icon

  • facebook
  • facebook
  • linkedin
  • linkedin
  • twitter
  • twitter
  • facebook
  • facebook
  • linkedin
  • linkedin
  • twitter
  • twitter

LeeSpring