The requirement is for 15 each of NSN 7R-1680-016985102-H5, delivered FOB origin. This is a flight-critical part that requires Government source approval prior to award, and only previously approved sources have been solicited because the technical data does not support full and open competition. Alternate sources must qualify through the design control activity and Government engineering approval, submitting all information required by the applicable NAVSUP WSS Source Approval Information Brochure with their offer. If a source approval request is already being evaluated at NAVSUP WSS, the offer must include a copy of the cover letter that forwarded the request. The new-source approval process normally cannot be completed in time to avoid delaying award, and award may proceed based on Fleet support needs if approval requirements cannot be met in time.