🔥 NADCAP

NADCAP Accredited Special Process Suppliers for Provo, UT

The machining can be perfect and the part still gets rejected, because the heat-treat cycle wasn't run at an accredited shop. NADCAP is the aerospace industry's accreditation for special processes, the operations whose quality you can't fully verify by inspecting the finished part, and for Provo aerospace and defense work it's where supply chains most often break down. Special processes rarely live inside a Provo machine shop; they route to subtier processors who must hold NADCAP accreditation for the exact process. This page shows a Utah County buyer how NADCAP works, how to verify it, and how to keep the subtier chain clean.

NADCAPAS9100ISO 9001

What NADCAP covers and why finished-part inspection can't replace it

NADCAP, the National Aerospace and Defense Contractors Accreditation Program, is administered by the Performance Review Institute. It accredits special processes, operations whose conformance can't be reliably confirmed by inspecting the finished part. Heat treatment, chemical processing and finishing (anodize, plating, passivation), nondestructive testing (penetrant, magnetic particle, ultrasonic, radiographic), welding, and materials testing are the common ones for Provo aerospace and defense parts. You can't measure whether a heat-treat cycle hit the right soak temperature and quench rate by looking at the bracket; you have to trust the process, which is exactly why aerospace mandates accreditation of the process itself. NADCAP audits are notably more rigorous and prescriptive than a general QMS audit. They assess against detailed Audit Criteria specific to each process family, performed by industry-expert auditors, and the accreditation is tied to the specific processes a supplier was assessed for, not a blanket stamp. A shop accredited for heat treatment is not thereby accredited for NDT. For a Provo buyer, the practical reality is that NADCAP usually isn't a property of your machine shop, it's a property of the subtier processors your machine shop uses. Most Utah County machining and additive suppliers send special processes out, so the NADCAP question is really a supply-chain-mapping question.

Mapping the special-process routing on a Provo aerospace part

Before placing a controlled or flight-critical part, get the full process routing from your Provo machine shop: which operations happen in-house and which go to outside processors. A typical titanium aerospace bracket might be machined in Provo, sent out for stress relief or solution heat treat, returned for finish machining, sent out again for penetrant NDT and possibly a finish like anodize or passivation, then returned for final inspection. Each outside operation is a NADCAP touchpoint. For every special process in that routing, identify the processor and confirm it holds current NADCAP accreditation for that specific process category. Salt Lake City and the broader Wasatch Front host several accredited processors, so much of a Provo part's routing can stay regional, but verify rather than assume. A shop may hold NADCAP for one process and subcontract another to a vendor whose accreditation you also need to check. Under AS9100 the prime machine shop is responsible for controlling these subtiers, but as the buyer you carry the program risk if a part is rejected. Map the chain yourself, document each processor's accreditation, and make subtier NADCAP a written requirement in your PO. This is the single highest-leverage thing a Provo aerospace buyer can do to prevent receiving-dock rejections.

Verifying NADCAP accreditation and reading its scope

NADCAP accreditations are tracked through the Performance Review Institute and surfaced in the eAuditNet system, which lists accredited suppliers and their accredited process categories. Use it to confirm a processor's accreditation is current and, critically, to read which specific processes and process families it covers. A processor accredited for chemical processing may not be accredited for the specific finish your spec calls out; accreditation scope is granular. Watch accreditation expiry and merit status. NADCAP accreditations are time-limited and renewed through reaudit, and suppliers with strong performance can earn longer merit-based cycles while those with findings stay on shorter ones. A current accreditation with no open findings is what you want behind a flight-critical process. Ask the processor for its accreditation certificate and confirm it against eAuditNet. Also confirm the accreditation matches your customer's approved-source requirements. Some primes maintain their own approved-processor lists on top of NADCAP, so a NADCAP-accredited heat-treat shop might still need to be on your specific customer's qualified-source list. For Provo suppliers feeding a named defense or aerospace prime, reconcile NADCAP accreditation against that prime's flow-down approvals before committing.

Frequently Asked Questions

Because NADCAP exists specifically for processes whose quality can't be reliably verified by inspecting the finished part. These are called special processes, and the classic example is heat treatment: you can't look at, measure, or even routinely destructively test a heat-treated aerospace bracket to confirm the furnace held the correct soak temperature, time, and quench rate that produce the required metallurgical properties. The internal microstructure that determines strength and fatigue life was set by process conditions you can't see in the finished geometry. The same is true for chemical finishes like anodize and plating, where coating quality and thickness depend on bath chemistry and control, and for welding, where joint integrity depends on parameters and technique. NADCAP accredits the process itself, auditing whether the shop controls the parameters, equipment calibration, operator qualification, and procedures that make the process repeatable and conforming. So for a Provo aerospace part that goes through heat treat, finishing, or NDT, requiring NADCAP accreditation on those processors is how you gain confidence in characteristics that finished-part inspection can't reveal. Skipping it and relying on dimensional inspection alone leaves the most failure-relevant properties unverified.
In most cases it's the subtiers. NADCAP accredits special processes, heat treatment, chemical finishing, nondestructive testing, welding, materials testing, and the typical Provo machine shop or additive bureau doesn't perform those in-house; it subcontracts them to specialized processors. So when you're sourcing a Provo aerospace part, the NADCAP question almost always points to the subtier supply chain rather than to the machine shop you're contracting with directly. Your machine shop should be AS9100-certified and responsible under that standard for controlling its special-process suppliers, but the actual NADCAP accreditations live with the heat-treat shop, the plating line, and the NDT lab. That's why mapping the full process routing is essential: ask your Provo supplier which operations stay in-house and which go out, then verify NADCAP accreditation for each outside process. The Wasatch Front, including Salt Lake City, hosts accredited processors, so much of a Provo part's special-process routing can stay regional, but you should confirm each processor's accreditation in eAuditNet rather than assume. A small number of larger, vertically integrated suppliers do hold NADCAP for in-house processes, but for the typical Provo job shop, treat NADCAP as a supply-chain attribute you verify across subtiers.
NADCAP accreditations are managed by the Performance Review Institute and surfaced through the eAuditNet system, which lists accredited suppliers and the specific process categories each is accredited for. To verify, look up the processor in eAuditNet and confirm two things: that the accreditation is current and not expired, and that the accredited scope actually covers the specific process your part requires. Scope granularity matters, a supplier accredited for chemical processing may not be accredited for the exact finish your spec calls out, and a shop accredited for one NDT method like penetrant inspection isn't automatically accredited for radiographic or ultrasonic. Ask the processor for its accreditation certificate and cross-check it. Also pay attention to accreditation duration and merit status: NADCAP accreditations are time-limited and renewed through reaudit, with strong performers earning longer merit-based cycles and shops with findings kept on shorter ones, so a current accreditation with no open issues is the goal behind a flight-critical process. Finally, reconcile NADCAP against your customer's requirements, some aerospace and defense primes maintain their own approved-source lists on top of NADCAP, so a NADCAP-accredited Provo-area processor may still need to appear on your specific prime's qualified-source list before you can use it.
Yes, on both counts, and it's important to plan for it. NADCAP-accredited special processing concentrates demand into a smaller pool of qualified processors, so heat-treat, finishing, and NDT slots can carry queue time that a non-accredited commercial shop wouldn't impose, and that queue is outside your Provo machine shop's direct control. A part that routes out for solution heat treat, comes back for finish machining, then goes out again for NDT and a finish can accumulate several transit-and-queue cycles, each adding days. On cost, accredited processors carry the overhead of maintaining rigorous process controls, calibration, operator qualification, and periodic reaudit, which is reflected in pricing above commercial-equivalent processing. The way to manage both is to get the full routing from your Provo supplier up front and have them lay out the special-process schedule including outside-process turnaround, not just internal machining hours, so your need date reflects reality. Keeping accredited processors regional along the Wasatch Front shortens transit and helps, but the queue at a busy accredited heat-treat line is often the real schedule driver. Building that visibility into your timeline prevents the common surprise where a technically finished part sits waiting on an outside process near a deadline.

Last updated: July 2026

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