I’m looking for a sub to this DigiKey item # 450-1455-ND
Hello, and welcome to the forum! After doing some searching, I think this is going to be our best option in stock: 2449-VM3CQF1802L01-ND
It is very similar, but please review the specifications as some of the details like the operating and release force will be slightly off from the original. The switch type and electrical ratings are the same however.