The Defense Logistics Agency seeks potential sources for Circuit Card Assemblies to support the AN/MSQ-135 Mobile Tower System. The initial estimated quantity is 21 units, based on a recent purchase of 14 units in July 2024. The technical data package for the parts is available for release. This is a sources-sought notice for market research only and is not a solicitation. Interested companies must submit capability information via email by March 23, 2026.