Looking for the single, spiral spring, synthetic rubber sealing element( or Leather)Bore X Width as specified:5/8 X 1-1/8 X 1/4 IN3/4 X 1/8 X 1/4 IN1 1/4 X 2 X 3/8 IN1 1/4 X 2 X 7/18 IN1 1/4 X 2 X 1/2 INP/N: SU930079A1-7/8 X 2.623X 1/2 IN2.000X 3.000 X 1/2 INP/N: BURT. 200-3002-1/4 X 3.250 X 1/2 INP/N:BURT.225-3252-3/4 X 3-1/2 X3/8 IN3-1/4 X 4.250 X 1/2 INP/N: BURT. 325-4254 3/4 X 5 3/4 X 1/2 IN90X 110 X 12 MMP/N: MIM 90110 GACO