This is a procurement for 41 units of a flight-critical part that requires delivery FOB Origin. The item requires existing Government source approval prior to contract award, and only previously approved sources have been solicited. A prospective bidder that is not already an approved source must submit a full source approval package with their proposal, as the approval process is too lengthy to delay an award. Offers from unapproved sources that fail to provide all required source approval data will not be considered. The performance location and budget are not specified.