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United Kingdom
This is Stainless Steel Extension Spring 37.7mm x 5.5mm manufactured by RS Pro. The manufacturer part number is 821-453. It has 37.7mm free length. Its spring rate is about 0.07n/mm . The product is made from highly stable and reliable stainless steel. The wire has 0.5mm diameter. It has a maximum 116.10mm extended length . Moreover, it has an initial tension about 6.50n . The product has 5.5mm external diameter.
For more information please check the datasheets.
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