Need help on a keezer part

I bought several of these beer shanks back in 2015. I took it apart recently to clean.

Since the description says it's stainless steel I figured I could clean the rust off of the barb insert. Looks like it wasn't made of stainless steel.

Should I just reuse this thing or get a new one? If so I need the specs on this part so I will know what I need to buy.

Thanks for any help you can provide.

EDIT #1: Would this be a suitable replacement?

LitKiwi 2PCS Keg Coupler Barb Connector,Stainless Steel 304 Beer Kegerator Sankey Couplers,Hex Nut 5/8"G Thread x 1/4" Barb Beer Line Tailpiece Nipple Fitting with Sealing Gasket Washer https://a.co/d/g6HhP2c

EDIT #2: I emailed the customer support at MoreBeer and I got this response. They have great customer service.

Hi Casey,

Thanks for reaching out. This looks like a standard shank tailpiece. Here is a straight version, along with a curved version, in case it makes things easier.

Feel free to send me the invoice number after you order. I'm happy to refund the shipping cost for the inconvenience. Thanks!

Cheers! Zack

Zachary Marin Customer Service Representative | MoreFlavor! Inc. | 1-800-600-0033 Hours: Mon - Wed, Fri | 7:00 am PST - 4:00 pm P Visit Our Sites MoreBeer.com, MoreBeerPro.com MoreWine.com, MoreWinePro.com BrewmasterWholesale.com