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Physical Dimension

mm cm

Load

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MS24586-1211

Cost
$0.00
$0.00
Price
$0.00
Weight
0.06 lb.
Direction of Wind
Factory Option
Ends
Machine Loops
Finish
Zinc Plate and Bake per ASTM B633
Material
Music Wire
Total Coils
46.500
Published Stock Code
MS245861211
Product Type
Extension Spring
Product Category
Stock
Revision
E
Rate (N/mm)
1.06
Rate (kg/cm)
1.08
Rate (lb/in)
6.05
Rate (gm/mm)
108.00
Weight per Item (lb)
0.06
Material Specification
ASTM A228
Free Length (cm)
9.525
Free Length (inch)
3.750
Free Length (mm)
95.250
Free Length - Build Spec (in)
3.75
Free Length Tolerance (cm)
0.00
Free Length Tolerance (in)
0.00
Free Length Tolerance (mm)
0.00
Free Length Tolerance - Build Spec (in)
0.00
Inside Diameter (cm)
0.95
Inside Diameter (in)
0.37
Inside Diameter (mm)
9.50
Outside Diameter (cm)
1.270
Outside Diameter (in)
0.50
Outside Diameter (mm)
12.70
Outside Diameter - Build Spec (in)
0.50
Outside Diameter Tolerance (cm)
0.02
Outside Diameter Tolerance (in)
0.01
Outside Diameter Tolerance (mm)
0.20
Outside Diameter Tolerance - Build Spec (in)
0.01
Rate (gm/cm)
1080.00
Rate (kg/mm)
0.11
Rate (N/cm)
10.60
Rate - Build Spec (lb/in)
6.05
Rate Tolerance (gm/cm)
108.00
Rate Tolerance (gm/mm)
10.80
Rate Tolerance (kg/cm)
0.11
Rate Tolerance (kg/mm)
0.01
Rate Tolerance (lb/in)
0.61
Rate Tolerance (N/cm)
1.06
Rate Tolerance (N/mm)
0.11
Rate Tolerance - Build Spec (lb/in)
0.61
Total Coils - Build Spec
46.50
Wire Diameter (cm)
0.16
Wire Diameter (inch)
0.06
Wire Diameter (mm)
1.60
Wire Diameter - Build Spec (in)
0.06
Material Short Description
MW
Product Series
MIL SPEC Extension (MS24586)
Inside Diameter Tolerance (cm)
Reference
Inside Diameter Tolerance (in)
Reference
Inside Diameter Tolerance (mm)
Reference
Initial Tension - Build Spec. (lb)
1.70
Initial Tension (lb)
1.70
Initial Tension (N)
7.56
Initial Tension (kg)
0.77
Initial Tension (gm)
771.10
Initial Tension Tolerance - Build Spec. (lb)
0.00
Initial Tension Tolerance (lb)
0.00
Initial Tension Tolerance (N)
0.00
Initial Tension Tolerance (kg)
0.00
Initial Tension Tolerance (gm)
0.00
Inside Diameter Tolerance - Build Spec (in)
REF
Max Load - Build Spec. (lb)
18.80
Max Load (lb)
18.80
Max Load (kg)
8.53
Max Load (gm)
8527.70
Max Extended Length - Build Spec. (in)
6.58
Max Extended Length (in)
6.58
Max Extended Length (mm)
167.13
Max Extended Length (cm)
16.71
Body Length - Build Spec. (in)
2.99
Body Length (in)
2.99
Body Length (mm)
76.02
Body Length (cm)
7.60
Loop Inside Diameter - Build Spec. (in)
0.37
Loop Inside Diameter (in)
0.37
Loop Inside Diameter (mm)
9.50
Loop Inside Diameter (cm)
0.95
Loop Position
Inline
Loop Opening - Build Spec. (in)
0.03
Loop Opening (in)
0.03
Loop Opening (mm)
0.79
Loop Opening (cm)
0.08
Max Load (N)
83.63
Inside Diameter - Build Spec (in)
0.37
Model Code
MS

MIL SPEC Extension (MS24586)

Available for Immediate Delivery from Stock

The MS24586-1211 is a military specification extension spring from the MIL SPEC Extension (MS24586) series, designed to meet stringent defense and aerospace standards for critical applications. This precision spring features a 0.5-inch outside diameter (12.7 mm) with 0.374-inch loop inside diameter (9.5 mm) and extends from a free length of 3.75 inch (95.25 mm) to a maximum extended length of 6.58 inch (167.13 mm), providing reliable extension performance in military and aerospace systems where consistent operation under extreme conditions is mandatory. Manufactured from Music Wire with a 0.063-inch wire diameter (1.6 mm), the spring delivers a spring rate of 6.05 lb/inch (1.06 N/mm) through its 46.5 total coils with an initial tension of 1.7 lb (7.562 N) ensuring predictable force characteristics required by military specifications. With Inline loop positions for optimal load distribution and precise attachment, the spring supports a maximum load of 18.8 lb (83.627 N) at full extension with a body length of 2.993 inch (76.02 mm). This MIL-SPEC spring is essential for defense contractors, aerospace manufacturers, and government applications where compliance with military standards and proven reliability are non-negotiable requirements.

Learn about the MIL-SPEC Springs Series - MS24586

These products are part of the United States Defense Standard. They are used to help achieve standardization objectives set by the U.S. Department of Defense. This series is also commonly known interchangeably as "military standards", "MIL-SPEC", "MIL-STD" or "MilSpecs." These high precision designs meet stringent technical requirements and are used in a multitude of Military and Aerospace applications, both defense and non-defense related. MIL-SPEC springs are increasingly specified by other non-Defense government organizations, technical organizations, and highly regulated industries. The MIL-SPEC standard for extension springs for loads below 30 lbs. is AS24586; this was formerly MS24586. The MIL-SPEC standard for compression springs for loads below 20 lbs. is AS24585; this standard was formerly MS24585 are also available from stock and ready to ship.

MIL SPEC Extension (MS24586) 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

454131
Product MIL SPEC Extension Spring: OD 0.5 in, FL 3.75 in, Music Wire
Product MIL SPEC Extension Spring: OD 0.5 in, FL 3.75 in, Music Wire
Part Number MS24586-1211
Series MIL SPEC Extension (MS24586)
Outside Diameter (inch) 0.5
Outside Diameter (cm) 1.27
Outside Diameter (mm) 12.7
Wire Diameter (inch) 0.063
Wire Diameter (cm) 0.16
Wire Diameter (mm) 1.6
Max Load (gm) 8527.7
Max Load (lb) 18.8
Max Load (kg): 8.5277
Max Load (N): 83.627
Rate (gm/cm) 1080
Rate (gm/mm) 108
Rate (kg/cm) 1.08
Rate (kg/mm) 0.108
Rate (lb/in) 6.05
Rate (N/cm) 10.6
Rate (N/mm) 1.06
Max Extended Length (cm) 16.713
Max Extended Length (in) 6.58
Max Extended Length (mm) 167.13
Initial Tension (gm) 771.1
Initial Tension (kg) 0.7711
Initial Tension (lb) 1.7
Initial Tension (N) 7.562
Free Length (cm) 9.525
Free Length (inch) 3.75
Free Length (mm) 95.25
Material Music Wire
Loop Inside Diameter (cm) 0.95
Loop Inside Diameter (in) 0.374
Loop Inside Diameter (mm) 9.5
Ends Machine Loops
Loop Position Inline
Direction of Wind Factory Option
Finish Zinc Plate and Bake per ASTM B633
0.063 0.5 0.008 3.75 0 46.5 1.7 0 6.05 0.605 6.58 18.8 0.063 2.993 Inline 0.5 0.008 3.75 0 46.5 1.7 0 6.05 0.605 6.58 18.8
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Quantity Price
1 - 19 $22.200
20 - 49 $14.820
50 - 99 $9.970
100 - 199 $7.300
200 - 299 $5.160
300 - 399 $4.069
400 - 499 $3.383
500 - 599 $2.916
600 - 699 $2.574
700 - 799 $2.309
800 - 899 $2.099
900 - 999 $1.926
1000 $1.783

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