Extension, Drawbar Springs

Century Spring Corp.
Hubbell Controls
Murrplastik Systems, Inc.

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Box
Bulk
Retail Package

Active

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0.007" (0.18mm)
0.008" (0.20mm)
0.009" (0.23mm)
0.010" (0.25mm)
0.011" (0.28mm)
0.012" (0.30mm)
0.013" (0.33mm)
0.014" (0.36mm)
0.015" (0.38mm)
0.016" (0.41mm)
0.017" (0.43mm)
0.018" (0.46mm)
0.019" (0.48mm)
0.020" (0.51mm)
0.021" (0.53mm)
0.022" (0.56mm)
0.023" (0.58mm)
0.024" (0.61mm)
0.025" (0.64mm)
0.026" (0.66mm)
0.027" (0.69mm)
0.028" (0.71mm)
0.029" (0.74mm)
0.030" (0.76mm)
0.031" (0.79mm)
0.032" (0.81mm)
0.033" (0.84mm)
0.034" (0.86mm)
0.035" (0.89mm)
0.036" (0.91mm)
0.037" (0.94mm)
0.038" (0.97mm)
0.039" (0.99mm)
0.040" (1.02mm)
0.041" (1.04mm)
0.042" (1.07mm)
0.043" (1.09mm)
0.044" (1.12mm)
0.045" (1.14mm)
0.046" (1.17mm)
0.047" (1.19mm)
0.048" (1.22mm)
0.049" (1.24mm)
0.050" (1.27mm)
0.051" (1.30mm)
0.052" (1.32mm)
0.054" (1.37mm)
0.055" (1.40mm)
0.056" (1.42mm)
0.057" (1.45mm)
0.058" (1.47mm)
0.059" (1.50mm)
0.060" (1.52mm)
0.061" (1.55mm)
0.062" (1.57mm)
0.063" (1.60mm)
0.064" (1.60mm)
0.065" (1.65mm)
0.066" (1.68mm)
0.067" (1.70mm)
0.069" (1.75mm)
0.070" (1.78mm)
0.071" (1.80mm)
0.072" (1.83mm)
0.073" (1.85mm)
0.074" (1.88mm)
0.075" (1.91mm)
0.076" (1.93mm)
0.077" (1.96mm)
0.078" (1.98mm)
0.079" (2.01mm)
0.080" (2.03mm)
0.082" (2.08mm)
0.084" (2.13mm)
0.085" (2.16mm)
0.087" (2.21mm)
0.088" (2.24mm)
0.090" (2.29mm)
0.091" (2.31mm)
0.092" (2.34mm)
0.093" (2.36mm)
0.094" (2.39mm)
0.095" (2.41mm)
0.096" (2.44mm)
0.098" (2.49mm)
0.099" (2.51mm)
0.100" (2.54mm)
0.105" (2.67mm)
0.108" (2.74mm)
0.110" (2.79mm)
0.113" (2.87mm)
0.115" (2.92mm)
0.117" (2.97mm)
0.120" (3.05mm)
0.121" (3.07mm)
0.124" (3.15mm)
0.125" (3.18mm)
0.135" (3.43mm)
0.140" (3.56mm)
0.148" (3.76mm)
0.156" (3.96mm)
0.162" (4.11mm)
0.165" (4.19mm)
0.167" (4.24mm)
0.177" (4.50mm)
0.182" (4.62mm)
0.187" (4.75mm)
0.192" (4.88mm)
0.207" (5.26mm)
0.210" (5.33mm)
0.215" (5.46mm)
0.225" (5.72mm)
0.243" (6.17mm)
0.250" (6.35mm)
0.283" (7.19mm)
0.312" (7.92mm)
0.375" (9.53mm)

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Hard Drawn
HD
Music Wire
Oil Tempered
Phosphor Bronze
Spring Steel
SST 302
Stainless Steel

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0.004 lbs/in
0.007 lbs/in
0.008 lbs/in
0.016 lbs/in
0.03 lbs/in
0.032 lbs/in
0.036 lbs/in
0.04 lbs/in
0.043 lbs/in
0.05 lbs/in
0.052 lbs/in
0.053 lbs/in
0.06 lbs/in
0.062 lbs/in
0.07 lbs/in
0.08 lbs/in
0.09 lbs/in
0.099 lbs/in
0.1 lbs/in
0.11 lbs/in
0.116 lbs/in
0.12 lbs/in
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0.15 lbs/in
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0.173 lbs/in
0.178 lbs/in
0.18 lbs/in
0.19 lbs/in
0.195 lbs/in
0.2 lbs/in
0.21 lbs/in
0.219 lbs/in
0.22 lbs/in
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0.233 lbs/in
0.24 lbs/in
0.25 lbs/in
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0.27 lbs/in
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0.3 lbs/in
0.31 lbs/in
0.32 lbs/in
0.324 lbs/in
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0.35 lbs/in
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0.38 lbs/in
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0.4 lbs/in
0.41 lbs/in
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0.44 lbs/in
0.45 lbs/in
0.46 lbs/in
0.47 lbs/in
0.48 lbs/in
0.49 lbs/in
0.493 lbs/in
0.5 lbs/in
0.508 lbs/in
0.51 lbs/in
0.52 lbs/in
0.53 lbs/in
0.54 lbs/in
0.55 lbs/in
0.56 lbs/in
0.57 lbs/in
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0.59 lbs/in
0.6 lbs/in
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0.69 lbs/in
0.7 lbs/in
0.71 lbs/in
0.718 lbs/in
0.72 lbs/in
0.73 lbs/in
0.74 lbs/in
0.75 lbs/in
0.753 lbs/in
0.76 lbs/in
0.77 lbs/in
0.78 lbs/in
0.79 lbs/in
0.8 lbs/in
0.81 lbs/in
0.82 lbs/in
0.83 lbs/in
0.84 lbs/in
0.85 lbs/in
0.86 lbs/in
0.87 lbs/in
0.88 lbs/in
0.89 lbs/in
0.9 lbs/in
0.91 lbs/in
0.92 lbs/in
0.93 lbs/in
0.94 lbs/in
0.95 lbs/in
0.96 lbs/in
0.97 lbs/in
0.98 lbs/in
0.99 lbs/in
1.0 lbs/in
1.032 lbs/in
1.1 lbs/in
1.2 lbs/in
1.3 lbs/in
1.4 lbs/in
1.5 lbs/in
1.6 lbs/in
1.7 lbs/in
1.8 lbs/in
1.9 lbs/in
1.905 lbs/in
10.0 lbs/in
10.3 lbs/in
100.0 lbs/in
101.0 lbs/in
102.0 lbs/in
107.0 lbs/in
108.0 lbs/in
109.0 lbs/in
11.0 lbs/in
112.0 lbs/in
114.0 lbs/in
115.0 lbs/in
116.0 lbs/in
12.0 lbs/in
120.0 lbs/in
122.0 lbs/in
127.0 lbs/in
13.0 lbs/in
134.0 lbs/in
136.0 lbs/in
14.0 lbs/in
145.0 lbs/in
15.0 lbs/in
151.0 lbs/in
16.0 lbs/in
167.0 lbs/in
17.0 lbs/in
178.0 lbs/in
18.0 lbs/in
19.0 lbs/in
194.0 lbs/in
2.0 lbs/in
2.1 lbs/in
2.2 lbs/in
2.3 lbs/in
2.4 lbs/in
2.5 lbs/in
2.573 lbs/in
2.6 lbs/in
2.7 lbs/in
2.8 lbs/in
2.9 lbs/in
20.0 lbs/in
202.0 lbs/in
203.0 lbs/in
204.0 lbs/in
209.0 lbs/in
21.0 lbs/in
22.0 lbs/in
23.0 lbs/in
24.0 lbs/in
24.3 lbs/in
25.0 lbs/in
26.0 lbs/in
27.0 lbs/in
28.0 lbs/in
29.0 lbs/in
3.0 lbs/in
3.1 lbs/in
3.2 lbs/in
3.3 lbs/in
3.4 lbs/in
3.5 lbs/in
3.6 lbs/in
3.7 lbs/in
3.8 lbs/in
3.9 lbs/in
30.0 lbs/in
31.0 lbs/in
314 lbs/in
32.0 lbs/in
33.0 lbs/in
34.0 lbs/in
35.0 lbs/in
36.0 lbs/in
37.0 lbs/in
38.0 lbs/in
39.0 lbs/in
4.0 lbs/in
4.1 lbs/in
4.2 lbs/in
4.3 lbs/in
4.4 lbs/in
4.5 lbs/in
4.6 lbs/in
4.7 lbs/in
4.8 lbs/in
4.9 lbs/in
40.0 lbs/in
41.0 lbs/in
42.0 lbs/in
43.0 lbs/in
44.0 lbs/in
45.0 lbs/in
46.0 lbs/in
47.0 lbs/in
48.0 lbs/in
49.0 lbs/in
5.0 lbs/in
5.1 lbs/in
5.2 lbs/in
5.3 lbs/in
5.4 lbs/in
5.5 lbs/in
5.6 lbs/in
5.7 lbs/in
5.8 lbs/in
5.9 lbs/in
50.0 lbs/in
501.0 lbs/in
51.0 lbs/in
52.0 lbs/in
53.0 lbs/in
54.0 lbs/in
545.0 lbs/in
55.0 lbs/in
56.0 lbs/in
57.0 lbs/in
58.0 lbs/in
59.0 lbs/in
6.0 lbs/in
6.1 lbs/in
6.2 lbs/in
6.3 lbs/in
6.4 lbs/in
6.5 lbs/in
6.6 lbs/in
6.7 lbs/in
6.8 lbs/in
6.9 lbs/in
60.0 lbs/in
61.0 lbs/in
624.0 lbs/in
63.0 lbs/in
66.0 lbs/in
67.0 lbs/in
68.0 lbs/in
69.0 lbs/in
7.0 lbs/in
7.1 lbs/in
7.2 lbs/in
7.3 lbs/in
7.4 lbs/in
7.5 lbs/in
7.6 lbs/in
7.7 lbs/in
7.8 lbs/in
7.9 lbs/in
70 lbs/in
72 lbs/in
75 lbs/in
78 lbs/in
79 lbs/in
8.0 lbs/in
8.1 lbs/in
8.2 lbs/in
8.3 lbs/in
8.4 lbs/in
8.5 lbs/in
8.6 lbs/in
8.7 lbs/in
8.8 lbs/in
8.9 lbs/in
80 lbs/in
81 lbs/in
81.3 lbs/in
82 lbs/in
83 lbs/in
84 lbs/in
85 lbs/in
86 lbs/in
88 lbs/in
89 lbs/in
9.0 lbs/in
9.1 lbs/in
9.2 lbs/in
9.3 lbs/in
9.4 lbs/in
9.5 lbs/in
9.6 lbs/in
9.7 lbs/in
9.8 lbs/in
9.9 lbs/in
90 lbs/in
92 lbs/in
93 lbs/in
98 lbs/in
99 lbs/in

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0.19 lbs
0.21 lbs
0.22 lbs
0.24 lbs
0.27 lbs
0.30 lbs
0.32 lbs
0.37 lbs
0.39 lbs
0.40 lbs
0.41 lbs
0.42 lbs
0.44 lbs
0.45 lbs
0.46 lbs
0.48 lbs
0.52 lbs
0.53 lbs
0.557 lbs
0.58 lbs
0.60 lbs
0.61 lbs
0.62 lbs
0.63 lbs
0.639 lbs
0.64 lbs
0.65 lbs
0.67 lbs
0.68 lbs
0.69 lbs
0.70 lbs
0.71 lbs
0.73 lbs
0.74 lbs
0.77 lbs
0.80 lbs
0.81 lbs
0.82 lbs
0.84 lbs
0.85 lbs
0.86 lbs
0.87 lbs
0.88 lbs
0.90 lbs
0.92 lbs
0.94 lbs
0.95 lbs
0.98 lbs
0.99 lbs
1.0 lbs
1.029 lbs
1.08 lbs
1.1 lbs
1.2 lbs
1.274 lbs
1.3 lbs
1.4 lbs
1.5 lbs
1.6 lbs
1.679 lbs
1.7 lbs
1.8 lbs
1.9 lbs
1.975 lbs
10.0 lbs
10.783 lbs
100.0 lbs
102.0 lbs
107.0 lbs
108.0 lbs
11.0 lbs
112 lbs
114 lbs
12.0 lbs
12.06 lbs
12.198 lbs
120.0 lbs
13.0 lbs
132.0 lbs
133.0 lbs
134.0 lbs
136.0 lbs
138.0 lbs
14.0 lbs
14.059 lbs
141.0 lbs
15.0 lbs
151.0 lbs
153.0 lbs
16.0 lbs
17.0 lbs
170.0 lbs
174.0 lbs
176.0 lbs
18.0 lbs
19.0 lbs
19.269 lbs
19.777 lbs
196.0 lbs
2.0 lbs
2.1 lbs
2.176 lbs
2.2 lbs
2.3 lbs
2.4 lbs
2.427 lbs
2.5 lbs
2.6 lbs
2.7 lbs
2.8 lbs
2.9 lbs
20.0 lbs
21.0 lbs
21.261 lbs
214.0 lbs
22.0 lbs
221.0 lbs
222.0 lbs
23.0 lbs
24.0 lbs
25.0 lbs
255.0 lbs
26.0 lbs
27.0 lbs
275.0 lbs
28.0 lbs
29.0 lbs
3.0 lbs
3.1 lbs
3.2 lbs
3.285
3.3 lbs
3.4 lbs
3.5 lbs
3.515 lbs
3.6 lbs
3.7 lbs
3.8 lbs
3.883 lbs
3.9 lbs
30.0 lbs
31.0 lbs
310.0 lbs
32.0 lbs
33.0 lbs
33.7 lbs
34.0 lbs
34.2 lbs
35.0 lbs
35.7 lbs
36.0 lbs
37.0 lbs
38.0 lbs
39.0 lbs
4.0 lbs
4.1 lbs
4.2 lbs
4.3 lbs
4.4 lbs
4.5 lbs
4.504 lbs
4.6 lbs
4.7 lbs
4.8 lbs
4.9 lbs
40.0 lbs
41.0 lbs
42.0 lbs
43.0 lbs
44.0 lbs
448.0 lbs
45.0 lbs
46.0 lbs
47.0 lbs
48.0 lbs
48.92 lbs
49.0 lbs
495.0 lbs
5.0 lbs
5.1 lbs
5.2 lbs
5.3 lbs
5.357 lbs
5.4 lbs
5.5 lbs
5.556 lbs
5.6 lbs
5.684 lbs
5.7 lbs
5.8 lbs
5.9 lbs
50.0 lbs
51.0 lbs
512.0 lbs
52.0 lbs
53.0 lbs
54.0 lbs
55.0 lbs
56.0 lbs
57.0 lbs
58.0 lbs
59.0 lbs
6.0 lbs
6.1 lbs
6.2 lbs
6.3 lbs
6.4 lbs
6.5 lbs
6.581 lbs
6.6 lbs
6.7 lbs
6.8 lbs
6.9 lbs
60.0 lbs
61.0 lbs
62.0 lbs
63.0 lbs
64.0 lbs
66.0 lbs
69.0 lbs
7.0 lbs
7.2 lbs
7.3 lbs
7.4 lbs
7.5 lbs
7.6 lbs
7.7 lbs
7.8 lbs
7.9 lbs
70.0 lbs
71.0 lbs
73.0 lbs
74.0 lbs
75.0 lbs
76.0 lbs
77.0 lbs
78.0 lbs
8.0 lbs
8.1 lbs
8.2 lbs
8.3 lbs
8.4 lbs
8.5 lbs
8.6 lbs
8.7 lbs
8.8 lbs
8.9 lbs
80.0 lbs
81.0 lbs
82.0 lbs
83.0 lbs
84.0 lbs
85.0 lbs
87.0 lbs
89.0 lbs
892.0 lbs
9.0 lbs
9.1 lbs
9.2 lbs
9.3 lbs
9.4 lbs
9.6 lbs
9.657 lbs
9.8 lbs
9.9 lbs
93.0 lbs
94.0 lbs
95.0 lbs
96.0 lbs
98.0 lbs
99.0 lbs

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0.060" (1.52mm)
0.090" (2.29mm)
0.110" (2.79mm)
0.120" (3.05mm)
0.130" (3.30mm)
0.140" (3.56mm)
0.160" (4.06mm)
0.170" (4.32mm)
0.180" (4.57mm)
0.190" (4.83mm)
0.200" (5.08mm)
0.220" (5.59mm)
0.230" (5.84mm)
0.240" (6.10mm)
0.250" (6.35mm)
0.270" (6.86mm)
0.280" (7.11mm)
0.300" (7.62mm)
0.310" (7.87mm)
0.330" (8.38mm)
0.340" (8.64mm)
0.360" (9.14mm)
0.380" (9.65mm)
0.390" (9.91mm)
0.410" (10.41mm)
0.420" (10.67mm)
0.440" (11.78mm)
0.450" (11.43mm)
0.470" (11.94mm)
0.480" (12.19mm)
0.500" (12.70mm)
0.520" (13.21mm)
0.530" (13.46mm)
0.560" (14.22mm)
0.580" (14.73mm)
0.590" (14.99mm)
0.630" (16.00mm)
0.640" (16.26mm)
0.650" (16.51mm)
0.660" (16.76mm)
0.690" (17.53mm)
0.700" (17.78mm)
0.720" (18.29mm)
0.730" (18.54mm)
0.750" (19.05mm)
0.770" (19.56mm)
0.780" (19.81mm)
0.810" (20.57mm)
0.840" (21.34mm)
0.850" (21.59mm)
0.860" (21.84mm)
0.880" (22.35mm)
0.910" (23.11mm)
0.940" (23.88mm)
0.950" (24.13mm)
0.970" (24.64mm)
1.000" (25.40mm)
1.030" (26.16mm)
1.060" (26.92mm)
1.110" (28.19mm)
1.130" (28.70mm)
1.160" (29.46mm)
1.190" (30.23mm)
1.250" (31.75mm)
1.310" (33.27mm)
1.380" (35.05mm)
1.410" (35.81mm)
1.420" (36.07mm)
1.500" (38.10mm)
1.550" (39.37mm)
1.630" (41.40mm)
1.750" (44.45mm)
1.880" (47.75mm)
1.940" (49.28mm)
1.970" (50.04mm)
2.000" (50.80mm)

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0.325" (8.25mm)

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Black Oxide
Gold Iridite
None
Zinc