Viton Bonded Seal

For a 1-inch BSPP port, yes, this fits. The G 1 - 11 callout confirms it's sized and threaded for that connection. The Viton seal material holds up well in hydraulic fluid environments, so it's a solid choice for sealing that port without a lot of fuss.

It’s specified as a G 1 - 11 callout on Side 1 with a 1 inch size and a BSPP Side 1 type, so it matches that thread standard and size.