Peterson Spring

248.799.5400

Spring manufacturer | Springs, snap-rings, wire forms, clips, clamps, stampings

866.799.9417
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Light Duty – ISO Inch Series

Light-Duty-spring(Solid Green)

Efficient Operating Range is 25% to 50% deflection of free length.Maximum deflection is 50%; Long Life deflection is 40%; Optimum Life deflection is 25%.Deflection beyond this Efficient Operating Range could result in premature spring failure. Travel to Solid is a reference dimension only and should never be approached during use.

50% Deflection 40% Deflection 25% Deflection
Part# Free
Length (In)
Load (lbs) Deflection Length Load (lbs) Deflection Length Load (lbs) Deflection Length Deflection Length
Travel To Solid
Load @
.1″ Deflection (lbs)
Hole Dia.
Rod Dia.
DLD37-100 1 37 0.5 29 0.4 18 0.25 0.572 7.3 3/8 3/16
DLD37-125 1.25 41 0.625 33 0.5 20 0.313 0.725 6.5 3/8 3/16
DLD37-150 1.5 38 0.75 30 0.6 19 0.375 0.896 5 3/8 3/16
DLD37-175 1.75 37 0.875 29 0.7 18 0.438 1.088 4.2 3/8 3/16
DLD37-200 2 38 1 30 0.8 19 0.5 1.163 3.8 3/8 3/16
DLD37-250 2.5 38 1.25 30 1 19 0.625 1.552 3 3/8 3/16
DLD37-300 3 30 1.5 24 1.2 15 0.75 1.821 2 3/8 3/16
DLD37-1200 12 42 6 34 4.8 21 3 7.8 0.7 3/8 3/16
DLD50-100 1 55 0.5 44 0.4 28 0.25 0.536 11 1/2 9/32
DLD50-125 1.25 55 0.625 44 0.5 28 0.313 0.719 8.8 1/2 9/32
DLD50-150 1.5 59 0.75 47 0.6 29 0.375 0.831 7.8 1/2 9/32
DLD50-175 1.75 51 0.875 41 0.7 25 0.438 0.972 5.8 1/2 9/32
DLD50-200 2 52 1 42 0.8 26 0.5 1.091 5.2 1/2 9/32
DLD50-250 2.5 63 1.25 50 1 31 0.625 1.464 5 1/2 9/32
DLD50-300 3 53 1.5 42 1.2 26 0.75 1.85 3.5 1/2 9/32
DLD50-350 3.5 56 1.75 45 1.4 28 0.875 2.19 3.2 1/2 9/32
DLD50-1200 12 48 6 38 4.8 24 3 6.215 0.8 1/2 9/32
DLD62-100 1 95 0.5 76 0.4 48 0.25 0.528 19 5/8 11/32
DLD62-125 1.25 89 0.625 72 0.5 45 0.313 0.665 14.3 5/8 11/32
DLD62-150 1.5 98 0.75 78 0.6 49 0.375 0.85 13 5/8 11/32
DLD62-175 1.75 86 0.875 69 0.7 43 0.438 0.982 9.8 5/8 11/32
DLD62-200 2 102 1 82 0.8 51 0.5 1.126 10.2 5/8 11/32
DLD62-250 2.5 91 1.25 73 1 46 0.625 1.476 7.3 5/8 11/32
DLD62-300 3 99 1.5 79 1.2 50 0.75 1.842 6.6 5/8 11/32
DLD62-350 3.5 88 1.75 70 1.4 44 0.875 2.229 5 5/8 11/32
DLD62-400 4 92 2 74 1.6 46 1 2.577 4.6 5/8 11/32
DLD62-1200 12 96 6 77 4.8 48 3 7.609 1.6 5/8 11/32
DLD75-100 1 188 0.5 150 0.4 94 0.25 0.516 37.6 3/4 3/8
DLD75-125 1.25 179 0.625 144 0.5 90 0.313 0.665 28.7 3/4 3/8
DLD75-150 1.5 167 0.75 133 0.6 83 0.375 0.788 22.2 3/4 3/8
DLD75-175 1.75 162 0.875 130 0.7 81 0.438 0.934 18.5 3/4 3/8
DLD75-200 2 161 1 129 0.8 81 0.5 1.081 16.1 3/4 3/8
DLD75-250 2.5 159 1.25 127 1 79 0.625 1.374 12.7 3/4 3/8
DLD75-300 3 158 1.5 126 1.2 79 0.75 1.667 10.5 3/4 3/8
DLD75-350 3.5 156 1.75 125 1.4 78 0.875 1.961 8.9 3/4 3/8
DLD75-400 4 154 2 123 1.6 77 1 2.254 7.7 3/4 3/8
DLD75-450 4.5 155 2.25 124 1.8 78 1.125 2.547 6.9 3/4 3/8
DLD75-500 5 153 2.5 122 2 76 1.25 2.841 6.1 3/4 3/8
DLD75-550 5.5 154 2.75 123 2.2 77 1.375 3.134 5.6 3/4 3/8
DLD75-600 6 153 3 122 2.4 77 1.5 3.426 5.1 3/4 3/8
DLD75-1200 12 150 6 120 4.8 75 3 6.945 2.5 3/4 3/8
DLD100-100 1 290 0.5 232 0.4 145 0.25 0.509 58 1 1/2
DLD100-125 1.25 330 0.625 264 0.5 165 0.313 0.663 52.8 1 1/2
DLD100-150 1.5 301 0.75 241 0.6 150 0.375 0.792 40.1 1 1/2
DLD100-175 1.75 294 0.875 235 0.7 147 0.438 0.944 33.6 1 1/2
DLD100-200 2 289 1 231 0.8 145 0.5 1.097 28.9 1 1/2
DLD100-250 2.5 283 1.25 226 1 141 0.625 1.403 22.6 1 1/2
DLD100-300 3 279 1.5 223 1.2 140 0.75 1.709 18.6 1 1/2
DLD100-350 3.5 277 1.75 221 1.4 138 0.875 2.014 15.8 1 1/2
DLD100-400 4 274 2 219 1.6 137 1 2.32 13.7 1 1/2
DLD100-450 4.5 272 2.25 218 1.8 136 1.125 2.625 12.1 1 1/2
DLD100-500 5 270 2.5 216 2 135 1.25 2.931 10.8 1 1/2
DLD100-550 5.5 270 2.75 216 2.2 135 1.375 3.236 9.8 1 1/2
DLD100-600 6 270 3 216 2.4 135 1.5 3.542 9 1 1/2
DLD100-700 7 266 3.5 213 2.8 133 1.75 4.154 7.6 1 1/2
DLD100-800 8 268 4 214 3.2 134 2 4.764 6.7 1 1/2
DLD100-1200 12 264 6 211 4.8 132 3 7.21 4.4 1 1/2
DLD125-150 1.5 389 0.75 311 0.6 194 0.375 0.792 51.8 1-1/4 5/8
DLD125-175 1.75 350 0.875 280 0.7 175 0.438 0.935 40 1-1/4 5/8
DLD125-200 2 357 1 286 0.8 179 0.5 1.156 35.7 1-1/4 5/8
DLD125-250 2.5 391 1.25 313 1 196 0.625 1.481 31.3 1-1/4 5/8
DLD125-300 3 383 1.5 306 1.2 191 0.75 1.804 25.5 1-1/4 5/8
DLD125-350 3.5 378 1.75 302 1.4 189 0.875 2.131 21.6 1-1/4 5/8
DLD125-400 4 374 2 299 1.6 187 1 2.457 18.7 1-1/4 5/8
DLD125-450 4.5 371 2.25 297 1.8 186 1.125 2.784 16.5 1-1/4 5/8
DLD125-500 5 370 2.5 296 2 185 1.25 3.112 14.8 1-1/4 5/8
DLD125-550 5.5 369 2.75 295 2.2 184 1.375 3.435 13.4 1-1/4 5/8
DLD125-600 6 366 3 293 2.4 183 1.5 3.758 12.2 1-1/4 5/8
DLD125-700 7 364 3.5 291 2.8 182 1.75 4.418 10.4 1-1/4 5/8
DLD125-800 8 364 4 291 3.2 182 2 5.068 9.1 1-1/4 5/8
DLD125-1000 10 360 5 288 4 180 2.5 6.375 7.2 1-1/4 5/8
DLD125-1200 12 360 6 288 4.8 180 3 7.681 6 1-1/4 5/8
DLD150-200 2 450 1 360 0.8 225 0.5 1.12 45 1-1/2 3/4
DLD150-250 2.5 525 1.25 420 1 263 0.625 1.361 42 1-1/2 3/4
DLD150-300 3 519 1.5 415 1.2 260 0.75 1.744 34.6 1-1/2 3/4
DLD150-350 3.5 520 1.75 416 1.4 260 0.875 1.966 29.7 1-1/2 3/4
DLD150-400 4 532 2 426 1.6 266 1 2.344 26.6 1-1/2 3/4
DLD150-450 4.5 513 2.25 410 1.8 257 1.125 2.595 22.8 1-1/2 3/4
DLD150-500 5 500 2.5 400 2 250 1.25 2.96 20 1-1/2 3/4
DLD150-550 5.5 506 2.75 405 2.2 253 1.375 3.203 18.4 1-1/2 3/4
DLD150-600 6 480 3 384 2.4 240 1.5 3.554 16 1-1/2 3/4
DLD150-700 7 497 3.5 398 2.8 249 1.75 4.162 14.2 1-1/2 3/4
DLD150-800 8 516 4 413 3.2 258 2 4.856 12.9 1-1/2 3/4
DLD150-1000 10 500 5 400 4 250 2.5 6.094 10 1-1/2 3/4
DLD150-1200 12 492 6 394 4.8 246 3 7.172 8.2 1-1/2 3/4
DLD200-250 2.5 1216 1.25 973 1 608 0.625 1.28 97.3 2 1
DLD200-300 3 1140 1.5 912 1.2 570 0.75 1.55 76 2 1
DLD200-350 3.5 1138 1.75 910 1.4 569 0.875 1.834 65 2 1
DLD200-400 4 1128 2 902 1.6 564 1 2.125 56.4 2 1
DLD200-450 4.5 1105 2.25 884 1.8 552 1.125 2.356 49.1 2 1
DLD200-500 5 1095 2.5 876 2 548 1.25 2.745 43.8 2 1
DLD200-550 5.5 1108 2.75 887 2.2 554 1.375 2.972 40.3 2 1
DLD200-600 6 1116 3 893 2.4 558 1.5 3.282 37.2 2 1
DLD200-700 7 1071 3.5 857 2.8 536 1.75 3.806 30.6 2 1
DLD200-800 8 1072 4 858 3.2 536 2 4.439 26.8 2 1
DLD200-1000 10 1050 5 840 4 525 2.5 5.86 21 2 1
DLD200-1200 12 990 6 792 4.8 495 3 6.775 16.5 2 1
DLD250-300 3 1320 1.2 825 0.75 1.49 110 2-1/2 1-1/2
DLD250-350 3.5 1261 1.4 788 0.875 1.75 90.1 2-1/2 1-1/2
DLD250-400 4 1222 1.6 764 1 2 76.4 2-1/2 1-1/2
DLD250-450 4.5 1192 1.8 745 1.125 2.25 66.2 2-1/2 1-1/2
DLD250-500 5 1160 2 725 1.25 2.51 58 2-1/2 1-1/2
DLD250-600 6 1145 2.4 715 1.5 3.02 47.7 2-1/2 1-1/2
DLD250-700 7 1122 2.8 702 1.75 3.52 40.1 2-1/2 1-1/2
DLD250-800 8 1104 3.2 690 2 4.03 34.5 2-1/2 1-1/2
DLD250-1000 10 1072 4 670 2.5 5.02 26.8 2-1/2 1-1/2
DLD250-1200 12 1061 4.8 663 3 6.02 22.1 2-1/2 1-1/2

Die Springs Menu

  • Standard Inch Series
    • Medium Duty – Standard Inch Series
    • Medium Heavy Duty – Standard Inch Series
    • Heavy Duty – Standard Inch Series
    • Extra Heavy Duty – Standard Inch Series
  • ISO Inch Series
    • Light Duty – ISO Inch Series
    • Medium Duty ISO Inch Series
    • Heavy Duty – ISO Inch Series
    • Extra Heavy Duty – ISO Inch Series
  • ISO Metric Series
    • Light Duty – ISO Metric Series
    • Medium Duty – ISO Metric Series
    • Heavy Duty – ISO Metric Series
    • Extra Heavy Duty – ISO Metric Series

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The best products, coupled with practical, innovative thinking

Established in 1914, Peterson Spring is the largest privately held spring manufacturer in North America. Through designing, manufacturing and supplying springs, snap-rings, wire forms, clips, clamps, stampings, and a variety of sub-assemblies, Peterson Spring has expanded to 12 worldwide locations.
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Contact Peterson Spring

Main Office
21200 Telegraph Road
Southfield, MI 48033
United States

Phone (248) 799-5400
Fax (248) 357-3176

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