The Lockheed Martin Corp., Rotary and Mission Systems, Mitchel Field, New York, is awarded a $191,183,328 firm-fixed-price contract for the U.S. and United Kingdom to provide strategic weapon system Trident SSI Increment 8 production of inertial navigation systems and associated inertial spares for the Ohio and Columbia ballistic missile submarine shallow water submersible platforms for the fleet ballistic missile program. Work will be performed in Heath, Ohio (67%); Huntington Beach, California (21%); Mitchel Field, New York (9%); and Manassas, Virginia (3%), with an expected completion date of Feb. 28, 2028.  Fiscal 2021 other procurement (Navy) contract funds in the amount of $31,321,581 will be obligated; and fiscal 2021 shipbuilding and conversion (Navy) contract funds in the amount of $8,805,772, will be obligated on initial award.  No funds will expire at the end of the current fiscal year.  This contract was a sole-source acquisition in accordance with 10 U.S. Code 2304(c)(1) and (4). Strategic Systems Programs, Washington, D.C., is the contracting activity (N00030-21-C-0015).