ORIGINAL Bushing that goes through the carrier and holds hammer and take-down screw in place on Winchester pump 22 rifles. This part fits model 90 or 06, 62 or 62A. If your carrier wiggles around and has problems going down into the lower part of receiver this might be the problem. These bushings are high quality precisely made parts directly from the Winchester factory. If you want new bushings look up part number wp54-a wop