UPDATE 2/6/26 - Added "Unmarked Engineering Data" to Attachments. ********************************************* Two (2) each of NSN 1650-01-417-8523. This acquisition is restricted to qualified source... UPDATE 2/6/26 - Added "Unmarked Engineering Data" to Attachments. ********************************************* Two (2) each of NSN 1650-01-417-8523. This acquisition is restricted to qualified source(s): Lockheed CAGE 81755 and Arkwin CAGE 98391. Contractors desiring to become a qualified source must submit a qualification package. Please see clause 52.209-1 and the attached Manufacturing Qualification Requirement for additional details.