NADCAP Suppliers Fresno CA

Karl Gillihan

🔥 NADCAP

NADCAP Accredited Special-Process Suppliers for Fresno, CA

Most manufacturing certifications cover a whole facility; NADCAP covers a process. Run by the Performance Review Institute under the aerospace industry's direction, NADCAP accredits specific special processes, heat treating, nondestructive testing, chemical processing, coatings, welding, and more, to demanding industry checklists that primes and AS9100 suppliers require by flow-down. For a Fresno buyer or fabricator, the practical reality is that even a strong local AS9100 machine shop usually has to route special processes to NADCAP-accredited houses, and getting that routing right is what makes aerospace and defense parts acceptable.

NADCAPAS9100ISO 9001

NADCAP exists because special processes are where aerospace parts fail invisibly. A heat treat that misses its soak temperature, an anodize that's the wrong thickness, a penetrant inspection that misses a crack, none of these are obvious on receipt, but all can cause a field failure. So rather than auditing a whole company once, NADCAP audits each special process against a detailed, process-specific checklist developed by the aerospace community, and accreditation is granted for that specific process at that specific facility. A supplier might be NADCAP accredited for heat treat but not for the coatings it also offers. That granularity is the entire point and the main thing a buyer must respect. The accreditation has a defined scope, the specific processes, sometimes specific specifications and material types, and work outside that scope isn't covered. A Fresno fabricator that does excellent in-house welding still needs NADCAP-accredited welding, if its welding is a controlled special process on an aerospace part, or it must route the work to an accredited source. For buyers, this reframes sourcing. You're not just finding 'a NADCAP shop,' you're confirming the specific accredited process you need exists, in the right scope, at the facility that will actually perform the work.

How Fresno Parts Reach NADCAP Processes

Fresno's machining and fabrication base can produce aerospace and defense detail parts, but the special-process steps almost always route outward. Heat treat, hard anodize, chem film, cadmium or other platings, passivation, and NDT such as penetrant, magnetic particle, ultrasonic, and X-ray are typically performed by specialist houses, and for flight or defense hardware those houses must be NADCAP accredited in the relevant process. Some of that capacity sits in California's larger metros, so central-California parts often travel for these steps. This routing is where lead time and risk concentrate. Each special-process trip adds shipping, queue time at the accredited house, and the certification paperwork that has to come back with the parts. The buyer or the prime contractor's approved-process-source list often dictates which accredited houses may be used, so a Fresno machine shop has to coordinate with sources that are both NADCAP-accredited and customer-approved, which can be a narrower set than NADCAP accreditation alone. The practical implication: design the special-process chain before you cut metal. Know which NADCAP processes your part requires, confirm accredited and customer-approved sources for each, and sequence the routing so heat treat, coating, and NDT happen in the right order without parts bouncing back and forth.

Records, Lead Time, and Coordinating the Process Chain

Every NADCAP special process should return with certification: a heat-treat cert showing the actual cycle and conformance to the spec, a plating or coating cert with thickness and process parameters, and NDT reports identifying the technique, acceptance criteria, and results, often with the certified inspector's level noted. These certs are part of the deliverable, and for an AS9100 assembly they roll up into the part's traceability package. Insist on them; a special process without its cert is unusable on a controlled part. Lead time is dominated by the special-process chain, not the machining. Each accredited house has its own queue, and serial routing, machine, then heat treat, then NDT, then coat, then final inspection, stacks shipping and queue time. On new parts, the NADCAP processes plus the AS9102 first-article can push timelines out by weeks, so plan early and release long-lead, traceable material ahead of need. Consolidating processes at fewer accredited sources, where customer approvals allow, cuts shipping legs and shortens the chain. The buyer's job is coordination: map every NADCAP process the part needs, lock in accredited and approved sources, sequence the routing correctly, and confirm the certs flow back with each step. A Fresno machine shop that already manages these relationships, and many that serve aerospace do, is worth more than a marginally cheaper one that leaves the routing to you.

Verifying Accreditation Scope and Audit Currency

NADCAP accreditations are tracked in the PRI's eAuditNet system, where a supplier's accredited processes, scope, and accreditation status can be verified, this is the authoritative source, controlled by the aerospace community. Confirm the supplier appears there with the specific process you need, that the accreditation is current, and that the scope covers your specifications and materials. A coatings accreditation that doesn't include your particular spec doesn't help you. Go beyond the listing. NADCAP audits are rigorous and recurring, and a supplier's audit cycle and history tell you about its discipline; merit-based extended audit intervals signal strong performance, while frequent findings signal risk. For parts flowing to a specific prime, confirm the accredited source is also on that prime's approved-process-source list, because NADCAP accreditation and customer approval are separate gates and you need both. Red flags include a shop claiming NADCAP without an eAuditNet entry, a scope that omits your spec or material, or vagueness about which processes are accredited versus merely performed. On ManufacturingBase you can filter Fresno-area suppliers by NADCAP alongside capability, then drill into the specific accredited process and scope rather than trusting a blanket claim.

Frequently Asked Questions

NADCAP accredits specific special processes at specific facilities, not whole companies. Administered by the Performance Review Institute under aerospace-industry direction, it audits processes like heat treating, nondestructive testing, chemical processing, coatings, and welding against detailed, process-specific checklists the industry developed. Accreditation is granted for a defined scope, the particular process, and often particular specifications and material types, so a supplier might be accredited for heat treat but not for coatings it also offers. This granularity is the whole point: special processes are where aerospace parts fail invisibly, a missed soak temperature or a wrong anodize thickness isn't visible on receipt but can cause a field failure, so the industry audits each process rigorously rather than the plant once. For sourcing, this means you must confirm the specific accredited process you need exists, in the correct scope, at the facility that will actually perform it. You're not finding 'a NADCAP shop,' you're verifying a specific accredited process matches your part's requirement.

Fresno's machining and fabrication base can produce aerospace and defense detail parts, but the special-process steps almost always route to specialist outside houses. Heat treat, hard anodize, chem film, plating, passivation, and NDT, penetrant, magnetic particle, ultrasonic, X-ray, are typically performed by dedicated providers, and for flight or defense hardware those providers must be NADCAP accredited in the relevant process. Some of that capacity sits in California's larger metros, so central-California parts often travel for these steps. The routing is where lead time and risk concentrate: each trip adds shipping, queue time, and certification paperwork. Complicating it, the prime contractor's approved-process-source list often dictates which accredited houses may be used, so a Fresno shop must coordinate sources that are both NADCAP-accredited and customer-approved, a potentially narrower set. The practical move is to design the special-process chain before cutting metal, know which NADCAP processes the part needs, confirm accredited and approved sources for each, and sequence the routing so heat treat, coating, and NDT happen in the correct order.

NADCAP accreditations are tracked in the PRI's eAuditNet system, the aerospace community's authoritative source. Confirm the supplier appears there with the specific process you need, that the accreditation is current, and that the scope covers your specifications and material, a coatings accreditation that excludes your particular spec doesn't help. Go beyond the listing: NADCAP audits are rigorous and recurring, so a supplier's audit cycle and history indicate its discipline. Merit-based extended audit intervals signal strong performance, while frequent findings signal risk. For parts flowing to a specific prime, confirm the accredited source is also on that prime's approved-process-source list, because NADCAP accreditation and customer approval are separate gates and you need both. Red flags include a shop claiming NADCAP with no eAuditNet entry, a scope that omits your spec or material, or vagueness about which processes are genuinely accredited versus merely performed. Filtering ManufacturingBase by NADCAP plus capability and then drilling into the specific accredited process beats trusting a blanket claim.

Every NADCAP special process should return with certification: a heat-treat cert showing the actual cycle and spec conformance, a plating or coating cert with thickness and process parameters, and NDT reports identifying technique, acceptance criteria, results, and often the certified inspector's level. These certs are part of the deliverable, and for an AS9100 assembly they roll into the part's traceability package, so insist on them; a special process without its cert is unusable on a controlled part. Lead time is dominated by the special-process chain, not the machining. Each accredited house has its own queue, and serial routing, machine, heat treat, NDT, coat, final inspection, stacks shipping and queue time. On new parts, NADCAP processes plus the AS9102 first-article can push timelines out by weeks, so plan early and release long-lead traceable material ahead of need. Consolidating processes at fewer accredited sources where customer approvals allow cuts shipping legs. Your job as buyer is coordination: map every required process, lock in accredited and approved sources, sequence correctly, and confirm certs flow back with each step.

They operate at different levels and complement each other. ISO 9001 is the baseline quality-management system covering a facility's overall processes. AS9100 incorporates ISO 9001 and adds aerospace-specific requirements, including the obligation to control special processes and flow requirements down to sub-tier suppliers, which is precisely what drives the need for NADCAP. NADCAP then accredits those specific special processes, heat treat, NDT, coatings, welding, chemical processing, to detailed industry checklists. So a typical aerospace part flows like this: an AS9100-certified machine shop produces the detail, then routes special processes to NADCAP-accredited houses, with ISO 9001 underpinning everyone's quality system. A Fresno machine shop building aerospace parts will usually hold AS9100 itself and rely on NADCAP-accredited partners for the special processes rather than holding those accreditations in-house. When you source on ManufacturingBase, confirm the machining source's AS9100, then verify each required special process is covered by a NADCAP-accredited, customer-approved house in the correct scope.

Last updated: July 2026

Find NADCAP-Certified Manufacturers in Fresno, CA

Search verified Fresno shops that hold NADCAP.

Search Manufacturers →Get Your Shop Listed (Free)

No logins. No email gates. Just results.