This is a A-MB09 Bushing, Machine 1" X 1 1/2" 18 Ga. (Narrow Rim) PN: MB09Main Description As Following : A-MB09 Bushing, Machine 1" X 1 1/2" 18 Ga. (Narrow Rim) P.N: MB09 Gauge: 18Inside Diameter: 1"Outside Diameter: 1 1/2" Crossed From: BR16L , 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" Outside Diameter: 1 1/2"