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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 013B 07 M
0.239
0.094
2.39
0.033
0.013
0.33
567
0.567
1.25
5.56
227
22.7
0.227
0.0227
1.27
2.22
0.222
4.775
1.88
47.75
59
0.059
0.13
0.578
2.54
1
25.4
MW
EI 013B 07 S
0.239
0.094
2.39
0.033
0.013
0.33
472.3
0.4723
1.0412
4.631
189
18.9
0.189
0.0189
1.06
1.86
0.186
4.775
1.88
47.75
49.1
0.0491
0.1082
0.481
2.54
1
25.4
SS
EI 014B 01 M
0.239
0.094
2.39
0.036
0.014
0.36
680.4
0.6804
1.5
6.672
1268
126.8
1.268
0.1268
7.1
12.43
1.243
1.435
0.565
14.35
77.1
0.0771
0.17
0.756
0.953
0.375
9.53
MW
EI 016B 01 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
2536
253.6
2.536
0.2536
14.2
24.87
2.487
1.323
0.521
13.23
86.2
0.0862
0.19
0.845
0.953
0.375
9.53
MW
EI 016B 07 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
551
55.1
0.551
0.0551
3.083
5.4
0.54
3.96
1.559
39.6
72.6
0.0726
0.16
0.712
2.54
1
25.4
SS
EI 016B 07 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
661
66.1
0.661
0.0661
3.7
6.48
0.648
3.96
1.559
39.6
86.2
0.0862
0.19
0.845
2.54
1
25.4
MW
EI 016B 06 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
655
65.5
0.655
0.0655
3.67
6.43
0.643
3.416
1.345
34.16
72.6
0.0726
0.16
0.712
2.223
0.875
22.23
SS
EI 016B 06 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
786
78.6
0.786
0.0786
4.4
7.71
0.771
3.416
1.345
34.16
86.2
0.0862
0.19
0.845
2.223
0.875
22.23
MW
EI 016B 05 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
789
78.9
0.789
0.0789
4.42
7.74
0.774
2.896
1.14
28.96
72.6
0.0726
0.16
0.712
1.905
0.75
19.05
SS
EI 016B 05 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
946
94.6
0.946
0.0946
5.3
9.28
0.928
2.898
1.141
28.98
86.2
0.0862
0.19
0.845
1.905
0.75
19.05
MW
EI 016B 04 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
1013
101.3
1.013
0.1013
5.67
9.93
0.993
2.36
0.929
23.6
72.6
0.0726
0.16
0.712
1.588
0.625
15.88
SS
EI 016B 04 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
1214
121.4
1.214
0.1214
6.8
11.91
1.191
2.36
0.929
23.6
86.2
0.0862
0.19
0.845
1.588
0.625
15.88
MW
EI 016B 03 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
1370
137
1.37
0.137
7.67
13.43
1.343
1.842
0.725
18.42
72.6
0.0726
0.16
0.712
1.27
0.5
12.7
SS
EI 016B 03 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
1643
164.3
1.643
0.1643
9.2
16.11
1.611
1.842
0.725
18.42
86.2
0.0862
0.19
0.845
1.27
0.5
12.7
MW
EI 016B 02 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
1638
163.8
1.638
0.1638
9.17
16.06
1.606
1.59
0.626
15.9
72.6
0.0726
0.16
0.712
1.113
0.438
11.13
SS
EI 016B 02 M
0.239
0.094
2.39
0.041
0.016
0.41
1025.1
1.0251
2.26
10.053
1964
196.4
1.964
0.1964
11
19.26
1.926
1.59
0.626
15.9
86.2
0.0862
0.19
0.845
1.113
0.438
11.13
MW
EI 016B 01 S316
0.239
0.094
2.39
0.041
0.016
0.41
640.5
0.6405
1.412
6.281
2113
211.3
2.113
0.2113
11.83
20.72
2.072
1.219
0.48
12.19
72.6
0.0726
0.16
0.712
0.953
0.375
9.53
SS 316
EI 016B 01 S
0.239
0.094
2.39
0.041
0.016
0.41
854.1
0.8541
1.883
8.376
2113
211.3
2.113
0.2113
11.83
20.72
2.072
1.323
0.521
13.23
72.6
0.0726
0.16
0.712
0.953
0.375
9.53
SS
EI 014B 04 M
0.239
0.094
2.39
0.036
0.014
0.36
680.4
0.6804
1.5
6.672
607
60.7
0.607
0.0607
3.4
5.95
0.595
2.578
1.015
25.78
77.1
0.0771
0.17
0.756
1.588
0.625
15.88
MW
EI 014B 03 S
0.239
0.094
2.39
0.036
0.014
0.36
566.8
0.5668
1.2495
5.558
684
68.4
0.684
0.0684
3.83
6.71
0.671
2.007
0.79
20.07
64.2
0.0642
0.1416
0.63
1.27
0.5
12.7
SS

Why Choose Lee Spring?

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

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

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