Blue Medium Duty

Raymond® ISO D-Line series Die Springs (direct replacement for other Die Springs on the market) are offered in six robust duty ranges: ultra-light, light, medium, heavy, extra heavy, and ultra-strong.

ISO D-Line Die Springs are ideal for sheet metal forming or other press tool applications that need a spring force applied or other applications that need to store and release energy. Die Springs can apply a higher force per inch of compression or deflection than traditional, round wire Compression Springs. Utilizing Raymond® Die Springs enables high lifecycles, longer durability, and longer time between maintenance teardowns.

Stock Status

Free Length (in)

Hole Fit Diameter (in)

Spring Rate (lbs/in)

Outside Diameter (mm)

Inside Diameter (mm)

Spring Rate (N/mm)

Product Name Prices from Action

Blue ISO D-Line Series Spring 3/4" X 4"

Part Number: 304-416D
$7.75In Stock
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Blue ISO D-Line Series Spring 3/4" X 5"

Part Number: 304-420D
$8.59In Stock
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Blue ISO D-Line Series Spring 1" X 1"

Part Number: 304-504D
$4.94In Stock
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Blue ISO D-Line Series Spring 1" X 1-1/2"

Part Number: 304-506D
$5.51In Stock
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Blue ISO D-Line Series Spring 1" X 2"

Part Number: 304-508D
$6.20In Stock
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Blue ISO D-Line Series Spring 1" X 2-1/2"

Part Number: 304-510D
$6.84In Stock
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Blue ISO D-Line Series Spring 1" X 3"

Part Number: 304-512D
$7.26In Stock
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Blue ISO D-Line Series Spring 1" X 6"

Part Number: 304-524D
$12.30In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 1-1/2"

Part Number: 304-606D
$7.65In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 2"

Part Number: 304-608D
$8.31In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 2-1/2"

Part Number: 304-610D
$9.07In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 3"

Part Number: 304-612D
$10.12In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 5"

Part Number: 304-620D
$14.95In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 5-1/2"

Part Number: 304-622D
$16.38In Stock
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Blue ISO D-Line Series Spring 1-1/4" X 12"

Part Number: 304-648D
$36.63In Stock
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Blue ISO D-Line Series Spring 1-1/2" X 2-1/2"

Part Number: 304-710D
$15.91In Stock
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Blue ISO D-Line Series Spring 1-1/2" X 4"

Part Number: 304-716D
$22.58In Stock
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Blue ISO D-Line Series Spring 1-1/2" X 7"

Part Number: 304-728D
$37.54In Stock
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Blue ISO D-Line Series Spring 1-1/2" X 10"

Part Number: 304-740D
$50.66In Stock
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Blue ISO D-Line Series Spring 2" X 2-1/2"

Part Number: 304-810D
$26.22In Stock
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Blue ISO D-Line Series Spring 2" X 3"

Part Number: 304-812D
$28.96In Stock
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Blue ISO D-Line Series Spring 2" X 4-1/2"

Part Number: 304-818D
$39.76In Stock
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Blue ISO D-Line Series Spring 2" X 5"

Part Number: 304-820D
$44.12In Stock
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Blue ISO D-Line Series Spring 2" X 6"

Part Number: 304-824D
$51.73In Stock
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