Netfilter nf_tables nat module

modulename: nft_nat.ko

and/or

nft_chain_nat.ko

configname: CONFIG_NFT_NAT

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>Netfilter nf_tables nat module
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This option adds the "nat" expression that you can use to perform
typical Network Address Translation (NAT) packet transformations.

source code:
net/netfilter/nft_nat.c
selects
CONFIG_NF_NAT