This is a A-MB07 Bushing, Machine 7/8" X 1 3/8" 18 Ga. (Narrow Rim) PN: MB07Main Description As Following : A-MB07 Bushing, Machine 7/8" X 1 3/8" 18 Ga. (Narrow Rim) P.N: MB07 Gauge: 18Inside Diameter: 7/8"Outside Diameter: 1 3/8" Crossed From: BR14L , 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: 7/8" Outside Diameter: 1 3/8"