



Every spring outside the standard check-valve form sits in this group. Because NCE imports spring wire and winds in the same plant, material traceability stays in one place.
The default machine direction. End condition (closed / open, ground) is stated on the drawing.
Used for counter-torque or dual-spring assemblies. Right and left can ship as a pair.
Conical, barrel, variable-pitch and form springs are made from the drawing. Custom size is standard.