Float brass 16N1 16N3 19N for KR51/1, KR51/2, S50, S51, S70, S51/1B, S51/1B4, S51/1C, S51/1E, S51N, S53, S83, S53B, S53C, S53E, S53N, S70/1E, S83B, S83E, SR4-2, SR4-2/1, SR4-3, SR4-4, SR50, SR80