1 Pc Taper pin for oil lubricated Busch vacuum pump. P/N 0437502718 (0437-502-718, 437502718, 0437.502.718, 0437 502 718 Position #60 in spare parts catalog. It's sutable for RA 0160 D, RA 0202, RA 0205, D D RC 0250 B, RA 0250 B,  RA 0250 D,  RA 0302 D, RA 0255 D,  RA 0305 D, RC 0250 D,  RC 0302 D, RC 0255 D,  RC 0305 D