"FD Beaufort at the Sharon Centre, Ohio was awarded a maximum of $49,046,703… contract for submarine escape immersion suits", the release said on Thursday.
The Defence Department explained the contract is to be fulfilled over a three year period with two one-year option periods to follow.
Beaufort suits are designed to allow free escape to the surface from damaged submarines and then to offer protection for the individuals wearing them until they are rescued, according to published information.
The US Navy abandoned pressurized submarine escape training for submarine crew members in 1979, but re-instituted it in 2009, using the Beaufort Mark 10 Submarine Escape and Immersion Equipment suit.