Rockwell Collins Inc., Cedar Rapids, Iowa, is awarded $14,915,670 for modification P00004 to a previously awarded firm-fixed-price, indefinite-delivery/indefinite-quantity contract (N00421-18-D-0004) to exercise additional contract line item numbers under Option Year I for the manufacture and delivery of additional quantities of the AN/ARC-210 family of radio equipment in support of Navy, Air Force, Marine Corps, and Foreign Military Sales customers. Work will be performed in Cedar Rapids, Iowa, and is expected to be completed in September 2021. No funds will be obligated at time of award. Funds will be obligated on individual orders as they are issued. The Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland, is the contracting activity.