Item Unique Identification (IUID) Checklist

This document is an Item Unique Identification (IUID) checklist used to track and manage unique item identification requirements for federal contracting purposes. The checklist is associated with DFARS 252.211.7003 and documents identification requirements for items requiring IUID marking.

The primary item detailed is a Valve Assembly (NOUN) with National Stock Number (NSN) 4820013894712LE, version number 5. The item is under the responsibility of Maria A. Rios, initiator at 417 SCMS/GUEA, with contact information including commercial phone 801-777-5739 and DSN phone 777-5739. The CAGE/Reference Number is 81205/DAA3222P709+03 and 09643/71549>1. Marking must be performed in accordance with the latest version of MIL-STD-130, with contractor determination of location and method. The item is noted to require IUID marking due to its proprietary nature, with location and method to be the contractor's responsibility. Robert A. Young initiated this checklist on 28 AUG 2025. The document also identifies an embedded item with NSN/Pseudo NSN 4820013894712LE, indicating hierarchical relationships between components.