3256: ES 0,4X5X20

All dimensions are in mm
Dt = Wire diameter
De = Outer diameter
Lo = Free length
nv = No of active coils
c = Rate
Fo = Initial force in Newtons, required force before the
spring starts to extend
L1 = Permitted extended length for dynamic load
F = Spring force in Newtons
s = Deflection

Material:
Spring steel EN 10270-1-SM
Stainless steel EN 10270-3-1.4310

Tolerances: You can find information about tolerances for our springs if you follow this link.

Max. working temperature:
EN 10270-1 = 120 °C
EN 10270-3-1.4310 = 250 °C