The two awards are worth a total of $36 million.
"B&W is pleased to continue providing the U.S. Naval Reactors Program with products and services through these two new contracts," said Peyton S. Baker, president of B&W NOG.
"The role that B&W's unique capabilities play in preparing and supporting the men and women who serve aboard the U.S. Navy's nuclear fleet is a source of immense pride for our workforce."
The first contract is for the assembly of nuclear propulsion components for Virginia Class submarines. It is for a period of four years. Work will be conducted at company facilities in Lynchburg, Va.
B&W NOG said the contract is worth $32 million but supplied no specifics on the propulsion components to be supplied.
The second contract, worth $4 million, enables the company to procure long-lead materials for the manufacture of the nuclear propulsion components to be manufactured for the Virginia class submarines.