🔥 NADCAP
NADCAP Accredited Special-Process Suppliers in Dallas, TX
NADCAP accreditation operates at a different level than a facility-wide quality certificate: it accredits specific special processes, heat treat, chemical processing, welding, nondestructive testing, and the like, against aerospace prime requirements. In Dallas-Fort Worth, where flight-hardware programs run deep, NADCAP is the credential that determines whether a coating, a heat-treat cycle, or an NDT inspection is acceptable to the customer. This page explains what NADCAP covers, how it stacks with AS9100, and how to source these processes correctly in the metroplex.
NADCAPAS9100ISO 9001
Process Accreditation, Not Facility Certification
The single most important thing to understand about NADCAP is that it accredits processes, not companies. A Dallas special-process house holds NADCAP accreditation for specific commodities, say heat treating and nondestructive testing, audited against the relevant aerospace standards and the requirements of the primes who govern the program. A supplier can be NADCAP accredited for heat treat and not for plating, so the scope of accreditation has to match the exact process you're buying.
This distinguishes NADCAP sharply from AS9100, which certifies the facility's overall quality-management system. The two are complementary, not redundant. A machine shop may hold AS9100 for its quality system while routing the anodizing and heat treat on your part to NADCAP-accredited specialists, because the prime requires those special processes to carry NADCAP regardless of where the machining quality system lives.
NADCAP audits are unusually rigorous. They are conducted against detailed audit criteria covering pyrometry for heat treat, solution control for chemical processing, operator certification for welding and NDT, and traceability throughout. The accreditation is managed by the Performance Review Institute on behalf of the aerospace primes, which is why a NADCAP-accredited supplier carries credibility a self-declared process control cannot match.
DFW's Special-Process Ecosystem
Because Dallas-Fort Worth hosts so much aerospace production, it supports a correspondingly deep base of NADCAP special-process houses. Heat-treat facilities running aluminum solution treatment and aging, steel hardening, and stress relief; anodizing and chemical-processing lines for aluminum airframe parts; plating houses; welding and brazing specialists; and NDT providers offering penetrant, magnetic particle, ultrasonic, and radiographic inspection all operate within the metroplex.
That depth means a buyer can often keep the entire special-process routing local. A part machined in Arlington can be heat treated, anodized, and NDT-inspected at NADCAP-accredited sources within the same metro, then returned for assembly, without shipping it across the country between operations. For aerospace work where each handoff is a FOD and traceability risk, keeping the chain tight is a genuine quality and schedule advantage.
The specialization also matters. Some DFW NADCAP houses focus on titanium and nickel-alloy processing for hot-section and structural components; others on aluminum for airframe and avionics work; others on the welding and brazing of complex assemblies. Matching the supplier's accredited commodity and material expertise to your specific part avoids the common error of sending an Inconel part to a shop whose accreditation and experience are really built around aluminum.
Reading a NADCAP Scope and Routing a Part Correctly
Verifying NADCAP starts with the eAuditNet database maintained by the Performance Review Institute, which lists accredited suppliers and the specific commodities they hold. Look up your Dallas supplier and confirm the accreditation covers the exact special process and, where applicable, the specific specifications and material your part requires. An accreditation for 'heat treating' is not automatically an accreditation for the particular pyrometry class or alloy your drawing calls out.
The most common sourcing failure in this area is verifying the wrong link in the chain. A buyer confirms the machine shop's AS9100 certificate, sees it's a solid supplier, and never checks who actually performs the heat treat and anodize. If those special processes route to a subtier that lacks NADCAP for the required commodity, the part gets rejected at the prime's receiving inspection no matter how good the machining is. Always map the full routing and verify accreditation at every special-process node.
When routing a part, confirm the supplier works to the exact specification called out, because aerospace primes frequently mandate proprietary process specs layered on top of the public ones. A NADCAP-accredited DFW heat treater experienced with Lockheed or Bell programs will already understand those prime-specific specs; a general aerospace shop may hold the accreditation but lack experience with the particular customer's requirements. Confirm both the accreditation and the relevant program experience.
Frequently Asked Questions
AS9100 and NADCAP cover different things and aerospace primes typically require both where special processes are involved. AS9100 certifies a facility's overall quality-management system, demonstrating the shop has configuration management, traceability, and process control across its operations. NADCAP accredits specific special processes, such as heat treatment, anodizing, plating, welding, and nondestructive testing, against detailed aerospace audit criteria managed by the Performance Review Institute on behalf of the primes. The reason both are needed is that special processes are special precisely because their quality cannot be fully verified by inspecting the finished part. You cannot measure a heat-treat cycle by looking at the metal; you have to trust the pyrometry, the controls, and the process discipline, which is exactly what NADCAP audits. So for a Dallas aerospace part requiring heat treat or chemical processing, the prime mandates that those steps occur at a NADCAP-accredited source even when the machine shop itself holds AS9100. The two credentials are complementary: AS9100 governs the system, NADCAP governs the high-risk special processes within it.
Use eAuditNet, the database operated by the Performance Review Institute, which is the authoritative source for NADCAP accreditation status. Look up the supplier and confirm the specific commodities and specifications they hold rather than accepting a general claim of accreditation. This matters because NADCAP accredits individual processes, so a DFW supplier might be accredited for heat treating but not for chemical processing, or accredited for one class of pyrometry but not the one your drawing requires. Confirm the accredited scope matches the exact special process, specification, and where relevant the material your part calls out. Also verify the accreditation is current, since NADCAP runs on audit cycles and a lapsed accreditation means the supplier is not presently qualified. Beyond the database check, confirm the supplier has actual experience with the prime program your part feeds, because aerospace customers like Lockheed or Bell often layer proprietary process specifications on top of the public standards. A supplier can hold the accreditation but lack familiarity with a specific customer's requirements, so verify both the eAuditNet scope and the relevant program experience before routing controlled work.
The processes that most commonly require NADCAP accreditation include heat treatment, chemical processing such as anodizing, passivation, and chem film, plating and other coatings, welding and brazing, nondestructive testing including penetrant, magnetic particle, ultrasonic, and radiographic methods, materials testing, and surface enhancement like shot peening. The DFW metroplex has a deep base of accredited houses across these commodities because of the region's aerospace density, so a buyer can usually keep the full special-process routing local. Which processes apply depends on your part: an aluminum airframe bracket might need heat treat and anodizing, while a titanium structural fitting could require heat treat, NDT, and possibly a specialized coating. A welded assembly brings welding and inspection into scope. The practical step is to read your drawing and the prime's flow-down to identify every special process called out, then confirm each one routes to a NADCAP-accredited source with the matching commodity scope. Missing a required special process or sending it to an unaccredited shop is the most common cause of receiving-inspection rejections on aerospace parts.
Sometimes, but you have to verify the accreditation covers each process you need rather than assuming a multi-process house holds NADCAP for everything it offers. Some DFW special-process suppliers are accredited across several commodities, for example heat treating plus nondestructive testing, which lets you consolidate operations and reduce handoffs. That consolidation has real value in aerospace, since every transfer of a part between facilities introduces FOD risk, traceability touch points, and schedule exposure. Keeping heat treat and NDT under one accredited roof in the metroplex shortens lead time and simplifies your supply chain. However, NADCAP accreditation is granted per commodity, so a house that does both machining-related coatings and welding might be accredited for one and not the other. Check eAuditNet for the exact scope of each process you intend to route there. Also confirm the supplier has the right material expertise, since a shop strong in aluminum processing may not be the right home for nickel-alloy or titanium work even if it holds the relevant commodity accreditation. Verify scope and material fit before consolidating.
Last updated: July 2026
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