Kadee #622 HO Scale, Knuckle Spring for Standard Head Couplers

HO-Scale Knuckle Springs For all Standard Head Couplers.(Except #58, #78, #119, #150-Series, #178, #711, #714, & #2100) Kadee® Spring Specifications One dozen per package   Package Includes: (1) Dozen #622 Knuckle Springs #622 Spring Specifications: Part Number (catalog)  -  622 Part Number (in house)  -  HO-1 Outside Diameter  -  0.052 Inside Diameter  -  0.044 Wire Diameter  -  0.004 Pitch  -  0.014 Total Coils  -  10.0 Free Length  -  0.148 Solid Height  -   0.040 Load (Solid Height)  -  9.0 Closed Coils  -  ¾ Material  -   PB