This is a notice of intent to negotiate a sole-source contract for 20 units of a flight-critical item, with delivery FOB Origin. The Government intends to negotiate with only one approved source because the technical data needed for competition is unavailable. Only sources previously approved by the Government for this item have been solicited, and the approval process for a new source is typically too lengthy to delay an award. Unapproved sources may still submit a proposal but must include a complete source approval request, as offers without this data will not be considered. Interested parties have 45 days from the notice's publication to identify their capability or submit a proposal for consideration.