Used on end item is model cs-433c type i, vibrating roller, caterpillar direct vendor delivery (dvd) program; nha is power train reduction gear pn 109-3009.
Used on m-109 a6 sph howitzer,2350-01-305-0028. 7roller set shall consist of 990 rollers, hardness shall be within a hrc range for the entire set; all rollers shall be within one group when rollers are grouped by diameter (0.4724 nom") to the nearest .0001 inch; roller length is 0.4725"