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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
LEM050ZA 01 M
0.249
0.098
2.49
0.051
0.02
0.51
1642
1.642
3.62
16.103
8138
813.8
8.138
0.8138
45.57
79.81
7.981
0.96
0.378
9.6
249.9
0.2499
0.551
2.451
0.79
0.311
7.9
MW
EIM030B 07 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
109
10.9
0.109
0.0109
0.611
1.07
0.107
5.804
2.285
58.04
34
0.034
0.075
0.334
2.499
0.984
24.99
SS
EIM030B 06 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
124
12.4
0.124
0.0124
0.697
1.22
0.122
5.149
2.027
51.49
34
0.034
0.075
0.334
2.25
0.886
22.5
SS
EIM030B 06 M
0.249
0.098
2.49
0.03
0.012
0.3
469.9
0.4699
1.036
4.608
149
14.9
0.149
0.0149
0.836
1.46
0.146
5.123
2.017
51.23
40.8
0.0408
0.09
0.4
2.25
0.886
22.5
MW
EIM030B 05 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
145
14.5
0.145
0.0145
0.81
1.42
0.142
4.491
1.768
44.91
34
0.034
0.075
0.334
1.999
0.787
19.99
SS
EIM030B 05 M
0.249
0.098
2.49
0.03
0.012
0.3
469.9
0.4699
1.036
4.608
174
17.4
0.174
0.0174
0.973
1.7
0.17
4.47
1.76
44.7
40.8
0.0408
0.09
0.4
1.999
0.787
19.99
MW
EIM030B 04 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
173
17.3
0.173
0.0173
0.968
1.7
0.17
3.835
1.51
38.35
34
0.034
0.075
0.334
1.75
0.689
17.5
SS
EIM030B 04 M
0.249
0.098
2.49
0.03
0.012
0.3
469.9
0.4699
1.036
4.608
208
20.8
0.208
0.0208
1.162
2.04
0.204
3.818
1.503
38.18
40.8
0.0408
0.09
0.4
1.75
0.689
17.5
MW
EIM030B 03 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
215
21.5
0.215
0.0215
1.203
2.11
0.211
3.178
1.251
31.78
34
0.034
0.075
0.334
1.501
0.591
15.01
SS
EIM030B 03 M
0.249
0.098
2.49
0.03
0.012
0.3
469.9
0.4699
1.036
4.608
258
25.8
0.258
0.0258
1.443
2.53
0.253
3.165
1.246
31.65
40.8
0.0408
0.09
0.4
1.501
0.591
15.01
MW
EIM030B 02 S
0.249
0.098
2.49
0.03
0.012
0.3
394.6
0.3946
0.87
3.87
283
28.3
0.283
0.0283
1.587
2.78
0.278
2.522
0.993
25.22
34
0.034
0.075
0.334
1.25
0.492
12.5
SS
EIM025B 02 S
0.249
0.098
2.49
0.025
0.01
0.25
207.8
0.2078
0.4581
2.038
111
11.1
0.111
0.0111
0.62
1.09
0.109
2.827
1.113
28.27
15.1
0.0151
0.0333
0.148
1.1
0.433
11
SS
EIM025B 04 S
0.249
0.098
2.49
0.025
0.01
0.25
207.8
0.2078
0.4581
2.038
66
6.6
0.066
0.0066
0.37
0.65
0.065
4.42
1.74
44.2
15.1
0.0151
0.0333
0.148
1.549
0.61
15.49
SS
EIM025B 04 M
0.249
0.098
2.49
0.025
0.01
0.25
249.5
0.2495
0.55
2.447
80
8
0.08
0.008
0.45
0.79
0.079
4.42
1.74
44.2
18.1
0.0181
0.04
0.178
1.549
0.61
15.49
MW
EIM025B 03 S
0.249
0.098
2.49
0.025
0.01
0.25
207.8
0.2078
0.4581
2.038
91
9.1
0.091
0.0091
0.51
0.89
0.089
3.383
1.332
33.83
15.1
0.0151
0.0333
0.148
1.25
0.492
12.5
SS
EIM025B 03 M
0.249
0.098
2.49
0.025
0.01
0.25
249.5
0.2495
0.55
2.447
109
10.9
0.109
0.0109
0.61
1.07
0.107
3.383
1.332
33.83
18.1
0.0181
0.04
0.178
1.25
0.492
12.5
MW
EIM025B 01 S
0.249
0.098
2.49
0.025
0.01
0.25
207.8
0.2078
0.4581
2.038
143
14.3
0.143
0.0143
0.8
1.4
0.14
2.296
0.904
22.96
15.1
0.0151
0.0333
0.148
0.95
0.374
9.5
SS
EIM025B 01 M
0.249
0.098
2.49
0.025
0.01
0.25
249.5
0.2495
0.55
2.447
171
17.1
0.171
0.0171
0.96
1.68
0.168
2.296
0.904
22.96
18.1
0.0181
0.04
0.178
0.95
0.374
9.5
MW
EIM025B 05 M
0.249
0.098
2.49
0.025
0.01
0.25
249.5
0.2495
0.55
2.447
61
6.1
0.061
0.0061
0.34
0.6
0.06
5.71
2.248
57.1
18.1
0.0181
0.04
0.178
1.9
0.748
19
MW
EIM025B 02 M
0.249
0.098
2.49
0.025
0.01
0.25
249.5
0.2495
0.55
2.447
134
13.4
0.134
0.0134
0.75
1.31
0.131
2.827
1.113
28.27
18.1
0.0181
0.04
0.178
1.1
0.433
11
MW

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large selection of springs

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products made to your specification.

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on Stock Springs in the Continental United States

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Expert Engineering Assistance

on Stock and Custom Springs

Certificate of Compliance

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LeeSpring

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