These are suggestions only, please review the recommended part to ensure it will work for your application.
3247-DE64TNKGV-35000-D-ND (Delkin Devices) was discontinued back in 2022, with 3247-DE64TNKAK-35000-D-ND being their recommended replacement at the time. Unfortunately, this has since been discontinued as well.
Looking over our options I’ve found 3 active parts that should be viable alternates for these items: 445-181916-ND (TDK Corporation), 445-181935-ND (TDK Corporation), and 1052-SFSA064GQ1AA4TO-I-QC-226-STD-ND (Swissbit)
Keep in mind these are not direct cross-reference items, but rather the best options available through DigiKey at time of writing.