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Extension Spring

Extension Springs — In Stock & Ready to Ship

Lee Spring stocks wide selection of extension springs in standard and instrument series configurations available for immediate shipment. Our in-stock extension spring inventory includes music wire, Type 302 stainless steel, and Type 316 stainless steel options with various end loop configurations. Filter by outside diameter, wire diameter, free length, initial tension, and maximum load to find the exact specification you need easily. All stock extension springs include free standard ground shipping option and a Certificate of Compliance. Learn more about Extension Springs and How to Measure an Extension Spring.

Results 5399 Springs
EI 011AA 05S
0.198
0.078
1.98
0.028
0.011
0.28
391.9
0.3919
0.864
3.843
316
31.6
0.316
0.0316
1.767
3.09
0.309
2.405
0.947
24.05
34
0.034
0.075
0.334
1.27
0.5
12.7
SS
EI 011AA 05M
0.198
0.078
1.98
0.028
0.011
0.28
467.2
0.4672
1.03
4.582
379
37.9
0.379
0.0379
2.12
3.71
0.371
2.395
0.943
23.95
40.8
0.0408
0.09
0.4
1.27
0.5
12.7
MW
EI 007AA 02S
0.198
0.078
1.98
0.08
0.007
0.18
97.5
0.0975
0.215
0.956
59
5.9
0.059
0.0059
0.328
0.57
0.057
2.299
0.905
22.99
9.5
0.0095
0.021
0.093
0.795
0.313
7.95
SS
EI 011AA 01M
0.198
0.078
1.98
0.028
0.011
0.28
467.2
0.4672
1.03
4.582
1125
112.5
1.125
0.1125
6.302
11.04
1.104
1.013
0.399
10.13
40.8
0.0408
0.09
0.4
0.635
0.25
6.35
MW
EI 011AA 01S
0.198
0.078
1.98
0.028
0.011
0.28
391.9
0.3919
0.864
3.843
938
93.8
0.938
0.0938
5.251
9.2
0.92
1.016
0.4
10.16
34
0.034
0.075
0.334
0.635
0.25
6.35
SS
EI 011AA 01S316
0.198
0.078
1.98
0.028
0.011
0.28
293.9
0.2939
0.648
2.882
938
93.8
0.938
0.0938
5.251
9.2
0.92
0.912
0.359
9.12
34
0.034
0.075
0.334
0.635
0.25
6.35
SS 316
EI 011AA 02M
0.198
0.078
1.98
0.028
0.011
0.28
467.2
0.4672
1.03
4.582
752
75.2
0.752
0.0752
4.209
7.37
0.737
1.361
0.536
13.61
40.8
0.0408
0.09
0.4
0.795
0.313
7.95
MW
EI 007AA 01M
0.198
0.078
1.98
0.08
0.007
0.18
116.6
0.1166
0.257
1.143
109
10.9
0.109
0.0109
0.611
1.07
0.107
1.6
0.63
16
11.3
0.0113
0.025
0.111
0.635
0.25
6.35
MW
EI 007AA 01S
0.198
0.078
1.98
0.08
0.007
0.18
97.5
0.0975
0.215
0.956
91
9.1
0.091
0.0091
0.509
0.89
0.089
1.605
0.632
16.05
9.5
0.0095
0.021
0.093
0.635
0.25
6.35
SS
EI 007AA 01S316
0.198
0.078
1.98
0.08
0.007
0.18
73
0.073
0.161
0.716
91
9.1
0.091
0.0091
0.509
0.89
0.089
1.334
0.525
13.34
9.5
0.0095
0.021
0.093
0.635
0.25
6.35
SS 316
EI 007AA 03M
0.198
0.078
1.98
0.08
0.007
0.18
116.6
0.1166
0.257
1.143
52
5.2
0.052
0.0052
0.292
0.51
0.051
2.969
1.169
29.69
11.3
0.0113
0.025
0.111
0.953
0.375
9.53
MW
EI 007AA 02S316
0.198
0.078
1.98
0.08
0.007
0.18
73
0.073
0.161
0.716
59
5.9
0.059
0.0059
0.328
0.57
0.057
1.877
0.739
18.77
9.5
0.0095
0.021
0.093
0.795
0.313
7.95
SS 316
EI 011AA 03M
0.198
0.078
1.98
0.028
0.011
0.28
467.2
0.4672
1.03
4.582
567
56.7
0.567
0.0567
3.173
5.56
0.556
1.704
0.671
17.04
40.8
0.0408
0.09
0.4
0.953
0.375
9.53
MW
EI 011AA 04S
0.198
0.078
1.98
0.028
0.011
0.28
391.9
0.3919
0.864
3.843
378
37.8
0.378
0.0378
2.115
3.7
0.37
2.06
0.811
20.6
34
0.034
0.075
0.334
1.113
0.438
11.13
SS
EI 011AA 04M
0.198
0.078
1.98
0.028
0.011
0.28
467.2
0.4672
1.03
4.582
453
45.3
0.453
0.0453
2.538
4.44
0.444
2.052
0.808
20.52
40.8
0.0408
0.09
0.4
1.113
0.438
11.13
MW
EI 011AA 03S316
0.198
0.078
1.98
0.028
0.011
0.28
293.9
0.2939
0.648
2.882
472
47.2
0.472
0.0472
2.644
4.63
0.463
1.501
0.591
15.01
34
0.034
0.075
0.334
0.953
0.375
9.53
SS 316
EI 011AA 03S
0.198
0.078
1.98
0.028
0.011
0.28
391.9
0.3919
0.864
3.843
472
47.2
0.472
0.0472
2.644
4.63
0.463
1.709
0.673
17.09
34
0.034
0.075
0.334
0.953
0.375
9.53
SS
EI 011AA 02S
0.198
0.078
1.98
0.028
0.011
0.28
391.9
0.3919
0.864
3.843
626
62.6
0.626
0.0626
3.508
6.14
0.614
1.367
0.538
13.67
34
0.034
0.075
0.334
0.795
0.313
7.95
SS
EI 007AA 02M
0.198
0.078
1.98
0.08
0.007
0.18
116.6
0.1166
0.257
1.143
70
7
0.07
0.007
0.394
0.69
0.069
2.291
0.902
22.91
11.3
0.0113
0.025
0.111
0.795
0.313
7.95
MW
EI 011AA 04S316
0.198
0.078
1.98
0.028
0.011
0.28
293.9
0.2939
0.648
2.882
378
37.8
0.378
0.0378
2.115
3.7
0.37
1.798
0.708
17.98
34
0.034
0.075
0.334
1.113
0.438
11.13
SS 316

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large selection of springs

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available, plus custom
products made to your specification.

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on Stock Springs in the Continental United States

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today.

Expert Engineering Assistance

on Stock and Custom Springs

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Engineering and
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LeeSpring

Lee Spring, 140 58th Street, Brooklyn, NY 11220 | 888-777-4647
Copyright 2020 Lee Spring Company