The Navy requires two spare units of NSN 7H-4820-011667106 under TDP VER 005, referencing 3189120-33, for delivery to DLA Distribution New Cumberland, PA, and DLA Distribution San Joaquin, Tracy, CA. The Navy lacks the technical data and has determined the spares are sole source; only sources approved by the In-Service Engineering Activity may be considered. Interested companies that believe they have the required data and capability to repair the item must become an approved source, which requires Depot Overhaul Point certification and submission of a Source Approval Request (SAR)-Maritime for NAVSEA technical review; this approval process can be lengthy. Remanufactured, surplus, or repair offers will be rejected as non-responsive. The Government intends to solicit and negotiate with only one source under FAR 6.302-1, though responsible sources may express interest/capability, and award requires qualification at time of award; FAR Part 12 commercial item policies are not being used, while certain trade agreements may apply.