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Extension Springs

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Extension springs are helical coil springs designed to absorb energy while resisting pulling forces. The further they are stretched, the more force is generate, making them ideal for bringing two components together.

Common applications include Throttle Turn Mechanisms in Automotive, Trampolines, Fitness Equipment and Vibration Dampening Systems.

It is available in both Music Wire material, which is ideal for temperatures between -30 C and +120 C and for use in dry environments, and stainless Steel material, which is ideal for temperatures between -200 C and +250 C and for use in both dry and humid or wet environments. Key Factors to consider when choosing a spring for an application include Spring Material and the Working Environment, Spring Dimensions in both extended and non-extended states. Material: Stainless Steel, Carbon Steel Series Code:

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198 results
Product SKUs information
Essentra Part Number Price range Availability Loaded Length Spring Rate Initial Tension Overall Length Material Load at Load Length Outside Diameter View
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
22.4 mm
Stainless Steel
19.64 N
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
34.8 mm
Stainless Steel
19.64 N
£ 1.715 - £ 1.8568 Request the lead time here
1.85 N
57.2 mm
Stainless Steel
19.64 N
£ 2.0552 - £ 2.2395 Request the lead time here
1.85 N
88.9 mm
Stainless Steel
19.64 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
25.4 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
38.1 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
3.04 N
63.5 mm
Stainless Steel
33.57 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
28.5 mm
Stainless Steel
58.54 N
£ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
44.5 mm
Stainless Steel
58.54 N
10416082 £ 1.9844 - £ 2.1545 Request the lead time here
5.19 N
69.9 mm
Stainless Steel
58.54 N
10439944 £ 1.9844 - £ 2.1545 Request the lead time here
1.48 N
38.1 mm
Stainless Steel
16.30 N
£ 1.9844 - £ 2.1545 Request the lead time here
1.48 N
63.5 mm
Stainless Steel
16.30 N
£ 2.2678 - £ 2.4663 Request the lead time here
1.48 N
101.6 mm
Stainless Steel
16.30 N
£ 2.3104 - £ 2.5088 Request the lead time here
6.30 N
34.8 mm
Stainless Steel
69.66 N
£ 2.3245 - £ 2.5372 Request the lead time here
6.30 N
57.2 mm
Stainless Steel
69.66 N
£ 2.4663 - £ 2.6789 Request the lead time here
6.30 N
88.9 mm
Stainless Steel
69.66 N
10635100 £ 3.5577 - £ 3.8554 Request the lead time here
10.26 N
50.8 mm
Stainless Steel
114.20 N
£ 3.8695 - £ 4.2097 Request the lead time here
10.28 N
76.2 mm
Stainless Steel
114.19 N
£ 4.0538 - £ 4.4223 Request the lead time here
10.26 N
127.0 mm
Stainless Steel
114.20 N
£ 3.8979 - £ 4.2381 Request the lead time here
23.22 N
69.9 mm
Stainless Steel
258.22 N
  • of 10
Extension Spring 6.1 mm 1.44 Nmm Stainless Steel

10439708

Price Range
£ 1.8568 - £ 1.715

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    22.4 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.70 Nmm Stainless Steel

10234594

Price Range
£ 1.8568 - £ 1.715

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.37 Nmm Stainless Steel

10418093

Price Range
£ 1.8568 - £ 1.715

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 6.1 mm 0.22 Nmm Stainless Steel

10439784

Price Range
£ 2.2395 - £ 2.0552

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.85 N
  • Load at Load Length
    19.64 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    88.9 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 3.21 Nmm Stainless Steel

10417485

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    25.4 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.01 Nmm Stainless Steel

10421154

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 0.42 Nmm Stainless Steel

10439845

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    3.04 N
  • Load at Load Length
    33.57 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 5.66 Nmm Stainless Steel

10439869

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    28.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 2.14 Nmm Stainless Steel

10439906

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    44.5 mm
  • Material
    Stainless Steel
Extension Spring 10.6 mm 1.08 Nmm Stainless Steel

10416082

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    5.19 N
  • Load at Load Length
    58.54 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    69.9 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.25 Nmm Stainless Steel

10439944

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    38.1 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.10 Nmm Stainless Steel

10439982

Price Range
£ 2.1545 - £ 1.9844

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    63.5 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.04 Nmm Stainless Steel

10234617

Price Range
£ 2.4663 - £ 2.2678

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    1.48 N
  • Load at Load Length
    16.30 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    101.6 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 4.55 Nmm Stainless Steel

10440049

Price Range
£ 2.5088 - £ 2.3104

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    34.8 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 1.78 Nmm Stainless Steel

10440070

Price Range
£ 2.5372 - £ 2.3245

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    57.2 mm
  • Material
    Stainless Steel
Extension Spring 12.7 mm 0.96 Nmm Stainless Steel

10234624

Price Range
£ 2.6789 - £ 2.4663

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    6.30 N
  • Load at Load Length
    69.66 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    88.9 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 4.95 Nmm Stainless Steel

10635100

Price Range
£ 3.8554 - £ 3.5577

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.26 N
  • Load at Load Length
    114.20 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    50.8 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 1.93 Nmm Stainless Steel

10633878

Price Range
£ 4.2097 - £ 3.8695

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.28 N
  • Load at Load Length
    114.19 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    76.2 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 0.88 Nmm Stainless Steel

10234648

Price Range
£ 4.4223 - £ 4.0538

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    10.26 N
  • Load at Load Length
    114.20 N
  • Maximum Application Temperature
    260 °C
  • Overall Length
    127.0 mm
  • Material
    Stainless Steel
Extension Spring 19.1 mm 11.01 Nmm Stainless Steel

10641828

Price Range
£ 4.2381 - £ 3.8979

Stock Levels
Request the lead time here
Attributes
  • Initial Tension
    23.22 N
  • Load at Load Length
    258.22 N
  • Maximum Application Temperature
    230 °C
  • Overall Length
    69.9 mm
  • Material
    Stainless Steel