I need a switch for 2003 ANH MR Darth Vader FX lightsaber

[Sluis Van Shipyards]

Does anyone have an extra switch for the 2003 Master Replicas Darth Vader FX Lightsaber? I broke mine while taking it apart to replace the blade and the replacement I wasn't given isn't working. Before the plastic blade broke it worked, and it worked with the outer plastic cracked so I think the switch is bad.

[welshm85]

What does the switch look like? I just converted my BS Luke and have the switch from that.

[Sluis Van Shipyards]

Here's the original switch with the little nub the slides broke off.
Front: https://i.imgur.com/HXgeqDL.jpg
Back: https://i.imgur.com/9YkCrSA.jpg

You can't see it in the first pic, but it has a "65" in between On and Off. The replacement someone over at the RPF gave me years ago looks the same, but has 66. I don't know if that makes any difference, but the replacement doesn't work.