This opportunity involves adding eight sole-source National Stock Numbers (NSNs) from FSC 2925 and 6150 to an existing long-term contract with Unison (CAGE 59501). The government intends to award the addition on a sole-source basis to the Original Equipment Manufacturer (OEM) using a letter solicitation format. Non-OEM sources and surplus dealers may express interest by contacting the Contracting Officer before the synopsis closing date, providing evidence of ability to supply the items, quantity available, and price. No specific budget amounts or performance location are mentioned in the description. The government reserves the right to alter the acquisition strategy if surplus or newly-manufactured inventory is in its best interest.