AS9100 Rev D Aerospace Suppliers in Seattle, WA

Use OASIS, the Online Aerospace Supplier Information System operated by the International Aerospace Quality Group. OASIS is the authoritative database for AS9100, AS9110, and AS9120 certifications, and it lists the supplier's certificate status, the certification body that issued it, the effective and expiration dates, and the certified scope. A current, valid OASIS entry is the minimum bar before you release flight-hardware drawings. The certificate runs on a three-year cycle with annual surveillance audits, so confirm both that the certificate is in date and that surveillance is current, since a certificate can be suspended between renewals. Also verify the certification body is accredited. Beyond the database, ask the supplier for their certificate PDF and cross-check the certificate number against OASIS. In the dense Seattle aerospace market you have many qualified options, so a supplier who hesitates to share their OASIS record is an easy one to pass on. Legitimate Boeing-region shops are accustomed to this verification and provide it without friction.

AS9100 Rev D contains the entire ISO 9001:2015 standard and then adds aerospace-specific requirements on top. The additions are exactly the things flight hardware demands: first-article inspection per AS9102, configuration management tied to drawing revisions, counterfeit-parts prevention, foreign object debris (FOD) control, product safety and risk management focused on flight safety, and tighter requirements around special-process control and key characteristics. A shop holding AS9100 is automatically meeting ISO 9001 as well, but the reverse is not true, an ISO 9001 shop has not been audited to the aerospace additions. For Seattle buyers, the rule of thumb is straightforward: if the part flies, is safety-critical, or sits in a Boeing or Blue Origin flow-down, require AS9100. If it's tooling, ground support equipment, fixtures, or commercial industrial hardware, ISO 9001 alone may be acceptable. Always check the actual program flow-down rather than assuming, because primes can impose AS9100 even on items you might consider non-flight.

AS9100 governs the supplier's overall quality management system, but it intentionally relies on NADCAP (the National Aerospace and Defense Contractors Accreditation Program) to qualify the special processes that aerospace parts depend on. Those special processes include heat treating, chemical processing such as anodize and passivation, nondestructive testing, welding, and various surface treatments. So when your aerospace part requires, for example, machining followed by heat treat and fluorescent penetrant inspection, AS9100 covers the machining shop's quality system while NADCAP accredits the heat-treat and NDT operations specifically. In the Puget Sound, the two travel together because the aerospace supply chain here is mature and tightly integrated, AS9100 prime shops routinely use NADCAP-accredited processors and many hold both. As a buyer, confirm both layers: the AS9100 certificate and scope on the manufacturing shop, plus the NADCAP accreditation scope on each special-process step your part requires. A mismatch between your spec and the processor's accreditation is a frequent and expensive aerospace sourcing error.

Often, yes, especially for defense-related programs. Many Seattle-area aerospace suppliers serve both commercial Boeing work and defense or space programs, and when a part appears on the U.S. Munitions List or its technical data is export-controlled, the supplier must be registered with the U.S. State Department's Directorate of Defense Trade Controls under ITAR. AS9100 and ITAR address completely different things, AS9100 is about quality, ITAR is about export control of defense articles and technical data, so a supplier can hold one without the other. For your sourcing, the key is to determine whether your part or its drawings are ITAR-controlled before you share any technical data. If they are, confirm the supplier's ITAR registration alongside the AS9100 certificate and ensure they have proper controls for handling controlled technical data, including U.S.-person access restrictions. ManufacturingBase lets you filter Seattle suppliers by both AS9100 and ITAR so you can confirm a supplier covers both requirements before drawings change hands.

Heavily. The Seattle aerospace supply base is sized around Boeing's production rates, so when Boeing ramps the 737 or its widebody lines, tier suppliers backfill capacity and the independent AS9100 shops fill their schedules quickly. That tightening ripples across the whole region and lengthens lead times even for parts unrelated to the program that's ramping, because the same machines, inspectors, and special-process slots are shared. During rate pullbacks the opposite happens: capacity opens up and pricing eases. For a buyer, this means a four-week quote captured during a slow period can stretch substantially during a ramp, and first-article cycles, which already take longer in aerospace, can back up further. Practical mitigations include qualifying a second AS9100 source for steady-state parts, placing blanket or long-term agreements to reserve capacity, building realistic FAI timelines into your schedule, and tracking Boeing's announced rate plans. ManufacturingBase's Seattle listings help you build a qualified backup supplier bench before a ramp squeezes your primary source.