This is a A-MB35 Bushing, Machine 1 3/4" X 3 1/4" 18 Ga. (Wide Rim) PN: MB35Main Description As Following : A-MB35 Bushing, Machine 1 3/4" X 3 1/4" 18 Ga. (Wide Rim) P.N: MB35 Gauge: 18Inside Diameter: 1 3/4"Outside Diameter: 3 1/4" Crossed From: BW28L , Found in Section & Models : Shop Supply > Machinery Bushings, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Gauge: 18 Inside Diameter: 1 3/4" Outside Diameter: 3 1/4"