of new parts, which enables consistent and efficient methods for manufacturing planning and support. Parts management ensures the facilitation of manufacturing support systems and processes such as material requirements planning.
In the operations area, parts management is a consideration in several aspects of supply chain management and operational support:
• Reduced acquisition lead-time. When a preferred part is used, government and industry can frequently avoid the expense and delay of designing and developing a new part, as well as the issues associated with acquiring a new item with no available history or documenta- tion. Using preferred parts often reduces the time between the purchase request and the receipt of the parts.
• Part and supplier quality. An important factor in selecting parts is whether the parts are qualified for the application in which they are to be used. Part manufacturers and part distributors that provide the selected part must be required to follow documented and established quality assurance policies and procedures. Those policies and procedures should address both the collection of statistical process control data and the implementa- tion of process controls on manufacturing, material, shipment, storage, process changes, customer satisfaction, and quality management.
• Enhanced logistics readiness and interoperability. When assemblies or systems share common components, repair time is shorter, because parts are more likely to be in the supply chain. Furthermore, using common components simplifies logistics support and enhances substitutability because fewer parts need to be stocked. This translates to savings in procuring, testing, warehousing, and transporting parts.
• Increased supportability and safety of systems and equipment. Preferred parts reduce risk and improve the chances that equipment will perform reliably. Preferred parts have a history of proven reliability, withstanding testing and performing at stated levels. Their use may reduce the number of part failures, thus reducing the number of maintenance actions,
increasing operational availability, and potentially precluding failures that could cause mis- sion failure or loss of life.
Parts management impacts two key aspects of product support:
• DMSMS management. Parts selected and used in design should be tracked for DMSMS issues throughout the system or equipment life cycle. This helps ensure the availability of parts by providing sufficient lead-time to develop the best resolutions to sustain fielded systems and reduce life-cycle costs. Many part-tracking databases are available to provide information concerning when a part is discontinued by its manufacturer. SD-22 provides information on DMSMS management and guidance on how to address DMSMS issues.
• Lead-free electronics mitigation. Executive Order 13423, "Strengthening Federal Environ- mental, Energy, and Transportation Management," and European Union directives-
in particular, "Restriction of Hazardous Substances" and "Waste Electrical and Electronic
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