Lost kneading blade that fits on drive shaft

I was recently given the regal K6725 bread maker and used it once and lost the kneading blade that fits on the drive shaft. I've tried the customer service number but they no longer sell the parts since the company no longer sell the bread maker . I've even tried many web sites for help for this part. Can anyone help me with a web site that may have this part or a phone number to call to order it.