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Extension Spring

Extension Springs

Extension springs absorb and store energy as well as create a resistance to a pulling force. Extension Springs are attached at both ends to other components. When these components move apart, the extension spring will pull components together again. Learn more about Extension Springs and How to Measure an Extension Spring.

Results 5399 Springs
EI 012B 06 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
143
14.3
0.143
0.0143
0.8
1.4
0.14
4.61
1.815
46.1
37.8
0.0378
0.0833
0.371
2.223
0.875
22.23
SS
EI 012B 06 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
171
17.1
0.171
0.0171
0.96
1.68
0.168
4.61
1.815
46.1
45.4
0.0454
0.1
0.445
2.223
0.875
22.23
MW
EI 012B 05 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
179
17.9
0.179
0.0179
1
1.75
0.175
3.81
1.5
38.1
37.8
0.0378
0.0833
0.371
1.905
0.75
19.05
SS
EI 012B 05 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
214
21.4
0.214
0.0214
1.2
2.1
0.21
3.81
1.5
38.1
45.4
0.0454
0.1
0.445
1.905
0.75
19.05
MW
EI 012B 04 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
223
22.3
0.223
0.0223
1.25
2.19
0.219
3.112
1.225
31.12
37.8
0.0378
0.0833
0.371
1.588
0.625
15.88
SS
EI 012B 04 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
268
26.8
0.268
0.0268
1.5
2.63
0.263
3.112
1.225
31.12
45.4
0.0454
0.1
0.445
1.588
0.625
15.88
MW
EI 012B 03 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
298
29.8
0.298
0.0298
1.67
2.92
0.292
2.413
0.95
24.13
37.8
0.0378
0.0833
0.371
1.27
0.5
12.7
SS
EI 012B 03 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
357
35.7
0.357
0.0357
2
3.5
0.35
2.413
0.95
24.13
45.4
0.0454
0.1
0.445
1.27
0.5
12.7
MW
EI 012B 02 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
357
35.7
0.357
0.0357
2
3.5
0.35
2.078
0.818
20.78
37.8
0.0378
0.0833
0.371
1.113
0.438
11.13
SS
EI 012B 02 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
429
42.9
0.429
0.0429
2.4
4.2
0.42
2.078
0.818
20.78
45.4
0.0454
0.1
0.445
1.113
0.438
11.13
MW
EI 012B 01 S
0.239
0.094
2.39
0.03
0.012
0.3
377.8
0.3778
0.833
3.705
477
47.7
0.477
0.0477
2.67
4.68
0.468
1.664
0.655
16.64
37.8
0.0378
0.0833
0.371
0.953
0.375
9.53
SS
EI 012B 01 M
0.239
0.094
2.39
0.03
0.012
0.3
453.6
0.4536
1
4.448
571
57.1
0.571
0.0571
3.2
5.6
0.56
1.664
0.655
16.64
45.4
0.0454
0.1
0.445
0.953
0.375
9.53
MW
EI 010B 04 M
0.239
0.094
2.39
0.025
0.01
0.25
272.2
0.2722
0.6
2.669
100
10
0.1
0.01
0.56
0.98
0.098
4.077
1.605
40.77
22.7
0.0227
0.05
0.222
1.588
0.625
15.88
MW
EI 011B 06 M
0.239
0.094
2.39
0.028
0.011
0.28
362.9
0.3629
0.8
3.559
107
10.7
0.107
0.0107
0.6
1.05
0.105
5.321
2.095
53.21
31.8
0.0318
0.07
0.311
2.223
0.875
22.23
MW
EI 011B 05 S316
0.239
0.094
2.39
0.028
0.011
0.28
226.3
0.2263
0.499
2.22
109
10.9
0.109
0.0109
0.61
1.07
0.107
3.739
1.472
37.39
26.4
0.0264
0.0583
0.259
1.905
0.75
19.05
SS 316
EI 011B 05 S
0.239
0.094
2.39
0.028
0.011
0.28
302.3
0.3023
0.6664
2.964
109
10.9
0.109
0.0109
0.61
1.07
0.107
4.445
1.75
44.45
26.4
0.0264
0.0583
0.259
1.905
0.75
19.05
SS
EI 011B 05 M
0.239
0.094
2.39
0.028
0.011
0.28
362.9
0.3629
0.8
3.559
130
13
0.13
0.013
0.73
1.28
0.128
4.445
1.75
44.45
31.8
0.0318
0.07
0.311
1.905
0.75
19.05
MW
EI 010B 04 S316
0.239
0.094
2.39
0.025
0.01
0.25
169.6
0.1696
0.374
1.664
84
8.4
0.084
0.0084
0.47
0.82
0.082
3.383
1.332
33.83
18.9
0.0189
0.0416
0.185
1.588
0.625
15.88
SS 316
EI 010B 05 S
0.239
0.094
2.39
0.025
0.01
0.25
226.7
0.2267
0.4998
2.223
66
6.6
0.066
0.0066
0.37
0.65
0.065
5.08
2
50.8
18.9
0.0189
0.0416
0.185
1.905
0.75
19.05
SS
EI 010B 05 M
0.239
0.094
2.39
0.025
0.01
0.25
272.2
0.2722
0.6
2.669
79
7.9
0.079
0.0079
0.44
0.77
0.077
5.08
2
50.8
22.7
0.0227
0.05
0.222
1.905
0.75
19.05
MW

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FREE Standard Ground Shipping

on Stock Springs in the Continental United States

FREE Plating

on all Music Wire Stock Springs

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on all Standard Stock Compression Springs

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

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at all Locations

Enhanced CAD Downloads

on Stock Springs Designs

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