NO.5(R) Metal Magne-Matic(R) coupler kit. Medium 9/32in centerset shank couplers. 2 Pair.
 
All metal coupler with insulated draft gear box and bronze centering spring. Couplers are interchangeable with 20 & 30 Series couplers. 
 
Coupler for standard height mounting platforms. Coupler Shank has the same dimensions as the '28, '38, '58, '118, '119, '148, & '158 Coupler Shanks.