Kadee #636 HO & HOn3 Scale, Centering Spring for Split Shank Couplers

Centering Spring (for #711, 712, 714 & 715 Split Shank Couplers) Precision Engineered Coil Metal Centering Springs for #711, #712 3/4 size HO-Scale and #714, #715 HOn3-Scale Split Shank Couplers. Kadee® Spring Specifications One dozen per package   HOn3-Scale & HO-Scale Package Includes: (1) Dozen #636 Coil Metal Centering Springs #636 Spring Specifications: Part Number (catalog)  -  636 Part Number (in house)  -  HO-3 Outside Diameter  -  0.052 Inside Diameter  -  0.046 Wire Diameter  -  0.003 Pitch  -  0.008 Total Coils  -  15.0 Free Length  -  0.128 Solid Height  -   0.045 Load (Solid Height)  -  2.0 Closed Coils  -  ¾ Material  -   PB