2a 1st end thread class vs in parker p/n denotes vibra sorb coating; threads are dipped in a polytetrafluoroethylene coating eliminates seal (pipe dope) , absorbs shock nptf 2nd end thread series
Used on sva crane, rough terrain container, x009. 2a 1st end thread class 12 1st end thread quantity per inch cadmium surface treated nptf 2nd end thread series