This requirement is issued under EAF Emergency Acquisition Flexibilities and is for a critical application item. Only government-approved sources of supply are acceptable; offers from non-approved sources will be deemed technically unacceptable and ineligible for award. Distributors of approved sources must submit an authorized distributor letter on the source’s letterhead to the buyer point of contact via email. The solicitation incorporates numerous standard clauses covering payment, stop-work, value engineering, security, Buy American, and related compliance requirements.