Ordered to load requirements when the following detail is requested: Free Length (FL) Load in lbf, N or Kgf at loaded length (LL) Rate lbf load per inc (kgf) load per mm. Maximum compression Maximum solid length Diameter, maximum outside (OD), minimum inside (ID) or mean diameter (MD) Right hand or left hand wound, if essential Type of ends (see right hand column) Material and finish Tolerances and special working conditions