AS9120

AS9120 is an aerospace quality management system (QMS) standard specifically developed for stockist and distributor organizations that supply parts, materials, and assemblies to the aviation, space, and defense sectors. It tailors general quality management requirements to the needs of organizations that purchase, store, repackage, and distribute aerospace products, rather than design or build them.

What AS9120 includes

AS9120 is based on ISO 9001 and adds aerospace-specific requirements that typically address:

• Control of purchased product, including verification of supplier quality and flowdown of aerospace requirements
• Traceability and recordkeeping for parts, lots, and materials through the distribution chain
• Control and prevention of counterfeit, suspect, or unapproved parts entering the supply chain
• Handling, storage, packaging, preservation, and delivery of aerospace products
• Documentation control, including certificates of conformity and airworthiness-related documents
• Customer and regulatory requirements relevant to distributors (for example, shelf life, special storage conditions)

AS9120 is typically implemented alongside other operational and information systems used by distributors, such as ERP, warehouse management systems, document control systems, and supplier quality management tools.

Where AS9120 applies in industrial operations

AS9120 commonly applies to:

• Independent distributors and stockists supplying aerospace OEMs, MROs, and tiered suppliers
• Internal distribution centers within larger aerospace manufacturers
• Organizations that do not significantly modify products, but may perform activities such as kitting, repackaging, or labeling

For these organizations, AS9120 shapes how quality processes are embedded in day-to-day operations, for example:

• Supplier approval and monitoring workflows in ERP or supplier portals
• Lot and serial traceability in inventory and warehouse systems
• Controlled handling of nonconforming product and returns
• Controlled issuance and retention of certificates and supporting records for audits

Relationship to other aerospace quality standards

AS9120 is part of the aerospace series of quality management standards, which commonly include:

• AS9100 for organizations that design and/or manufacture aviation, space, and defense products.
• AS9110 for organizations that perform maintenance, repair, and overhaul (MRO) of aerospace products.
• AS9120 for stockist/distributor organizations in the aerospace supply chain.

All three are aligned with ISO 9001 but include sector-specific requirements. They are often referenced in contracts and customer requirements, and their implementation interacts closely with quality management systems, document control, and traceability practices.

Common confusion

• AS9120 vs AS9100: AS9100 is generally for manufacturers and design organizations, while AS9120 focuses on distributors that do not significantly alter the product.
• AS9120 vs ISO 9001: ISO 9001 is a generic QMS standard; AS9120 incorporates ISO 9001 and adds aerospace-specific expectations for distribution, such as enhanced traceability and counterfeit-part controls.

Context in regulated manufacturing and supply chains

In regulated aerospace environments, AS9120 provides a structured framework for how distributors manage quality, traceability, and documentation. It affects how data is captured in ERP or warehouse systems, how records are controlled for audit readiness, and how suppliers and customers interface around quality and compliance requirements.