Malt consists of polytetrafluoroethylene plastic rod; per mil-p-19468; natural color; o/a diameter 0.795 in. Min; 0.800 in. Max; o/a lg; 0.920 in. Hub size o/a diameter 0.307 in. Min; 0.309 in. Max; thread pitch diameter 0.833 in. On out side surface of rod