| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONET THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS, REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANET MARKING ON THE MATERIAL, AND CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330 |