# AS9100D Certified Sheet Metal Fabricator: Verification Guide

> Fabcon walks aerospace buyers through seven verification steps to vet an AS9100D certified sheet metal fabricator before program award.

**Published:** 2026-08-11 | **Updated:** 2026-10-22 | **Author:** fabcon
**URL:** https://fabcon.com/articles/sheet-metal-fabrication/as9100d-certified-sheet-metal-fabricator/
**Type:** post

**Categories:** Sheet Metal Fabrication

![AS9100D Certified Sheet Metal Fabricator: Verification Guide](https://blog.fabcon.com/wp-content/uploads/sites/55/2026/08/1786098755857-ebf798bb6554-1024x572.webp)

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## Content

*Last updated: October 21, 2026*

## Key Takeaways for Selecting an AS9100D Sheet Metal Partner

- AS9100D certification alone does not confirm scope coverage, special-process control or traceability for specific aerospace sheet metal parts.
- Buyers benefit from verifying active OASIS status, reading the certificate scope narrowly and confirming sheet metal fabrication is explicitly listed.
- AS9102 first article inspection reports require complete Form 2 material certificates and actual measured values on Form 3 to avoid rejection.
- Special processes such as welding and chemical processing require documented flow-down to NADCAP-accredited suppliers when performed outside the fabricator.
- Fabcon holds AS9100D and ISO 9001:2015 certifications and supports documented quality management and traceability across fabrication, finishing and light electromechanical assembly under one roof.

[Get a Quote from Fabcon](https://fabcon.com/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator)

## The Problem: Why the Certificate Alone Does Not Protect a Program

Relying on the certificate as the finish line creates four documented risks that compound. A scope mismatch is common, where a machining-only scope appears on a sheet metal purchase order and creates a compliance gap. That gap often surfaces late when an expired or suspended OASIS record forces requalification under schedule pressure. AS9102 first article inspection reports are then rejected for missing Form 2 material certificates, which can halt a program. Special processes routed to nonaccredited suppliers without documented flow-down create audit findings that travel upstream to the prime.

A second problem compounds those risks. Transactional, build-to-print-only sheet metal shops typically stop at cutting and forming metal. They lack in-house engineering and design-for-manufacturability collaboration, finishing, wiring and light electromechanical assembly. Buyers manage multiple vendors and purchase orders for one finished assembly, which creates vendor handoff delays and quality finger-pointing across the supply chain.

Fabcon holds AS9100D and ISO 9001:2015 certifications and consolidates fabrication, finishing and light electromechanical assembly under one accountable partner. Integration separates this model from a build-to-print-only shop. A build-to-print-only shop delivers metal. Fabcon delivers a finished, traceable assembly.

![Wide view of the Fabcon precision sheet-metal fabrication floor with machining equipment.](https://cdn.aigrowthmarketer.co/1785163005561-2aaf42271e34.webp)**Fabcon operates approximately 118,000 sq. ft. of vertically integrated fabrication at its single Southern California facility — engineering, machining, fabrication, finishing, and assembly under one roof.**

For a deeper look at how integration changes program outcomes, see [AS9100 Sheet Metal Fabrication: Certified and Integrated](https://fabcon.com/articles/sheet-metal-fabrication/as9100-sheet-metal-fabrication/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator).

## Seven-Step Verification Before Awarding AS9100D Sheet Metal Work

This seven-step sequence gives procurement and quality teams an audit-defensible verification record before a purchase order is placed.

1. **Confirm active certification and OASIS listing.** Search the [IAQG OASIS database](https://jaymountconsulting.com/data-sources/iaqg-oasis-database) by company name. Confirm the status is current, the certification body is IAQG recognized and the expiry date is valid. Record the check date in the supplier file.
2. **Read the certificate scope statement.** Confirm the free-text scope matches what is being purchased. A scope statement must be read narrowly, and processes not named are outside coverage.
3. **Confirm sheet metal fabrication is in scope.** A scope covering machining does not cover forming, welding or assembly, even when all processes occur at the same facility.
4. **Confirm special-process control.** Ask whether welding, heat treating and chemical processing are performed in-house or routed to NADCAP-accredited suppliers, and how that routing is documented in the quality system.
5. **Request AS9102 first article inspection reports.** A compliant FAIR package includes [Forms 1, 2 and 3 plus the ballooned drawing, per AS9102 Rev C](https://thestandardsnavigator.com/2026/07/30/first-article-inspection-requirements).
6. **Request material certificates and traceability records.** Mill certs with heat and lot numbers, certificates of conformance and dimensional inspection data must tie to the purchase order and lot.
7. **Confirm ITAR and export-control status.** Ask directly. AS9100D certification and ITAR registration are independent requirements.

## Reading Certificate Scope and Using OASIS Effectively

Step 1 treats the OASIS check as a single action. In practice it takes more care, starting with what the registry contains. [OASIS (Online Aerospace Supplier Information System) is run by the IAQG](https://governancedocs.com/oasis-database) and lists suppliers certified under the 9100-series standards. Only certification bodies accredited under the IAQG scheme can issue certificates that appear in OASIS, which makes it the authoritative registry for aerospace certification status.

A public user can search OASIS after creating a free registered account. Publicly searchable record elements include the certified organization name and site address, the certification standard, the certification body, certificate status, issue and expiry dates on a three-year cycle and the free-text scope statement. [Detailed audit findings and nonconformities are available only at Level 2 access, granted by the certified organization](https://jaymountconsulting.com/data-sources/iaqg-oasis-database). That level does not apply for prospecting.

Scope statements require narrow reading. [A scope reading “design and manufacture of closed die forgings” excludes heat treatment, NDT and machining even when those processes occur at the same facility](https://vinirforge.org/blog/as9100d-aerospace-forging-supplier-usa). The same logic applies to sheet metal. A machining scope excludes forming, welding, finishing and assembly. Buyers benefit from confirming that “sheet metal fabrication” appears explicitly in the scope before awarding work.

Certified organization names in OASIS often differ from trading names, which creates a matching challenge. [Governance Docs recommends writing OASIS checks into the supplier control procedure](https://governancedocs.com/oasis-database). That procedure should specify who checks, when checks occur, what evidence is kept and what happens if a certificate is suspended or withdrawn.

OASIS provides evidence of certification status and scope only. It does not complete a supplier qualification decision.

## AS9102 First Article Inspection and Sheet Metal Traceability

[AS9102 Rev C, released by SAE International in June 2023, is the edition most aerospace primes and Tier 1 customers now require on new contracts](https://thestandardsnavigator.com/2026/07/30/first-article-inspection-requirements). It organizes FAI evidence into three forms.

Form 1 (Part Number Accountability) is the cover sheet. It records the part number, part name, drawing revision, FAIR number and full-versus-partial FAI designation. Under Rev C, a single Form 1 signature locks all three forms.

[Form 2 (Product Accountability) records raw materials, special processes and functional tests](https://cartograph.ai/blog/first-article-inspection). Each entry lists the specification, supplier and certificate or acceptance report number. For sheet metal, Form 2 captures the raw material spec and mill certificate number, heat and lot number and each special process with the provider name, process specification and certificate number. A missing mill cert on Form 2 is one of the most common causes of FAIR rejection.

[Form 3 (Characteristic Accountability) requires every dimension, tolerance and drawing note to receive a balloon number and a documented measured result](https://blog.qa-report.com/blog/as9102-requirements). A bare pass or fail entry does not satisfy the requirement and often triggers rejection at aerospace customers.

Key AS9102 Rev C rules relevant to sheet metal programs:

- A two-year production lapse triggers a reevaluation and typically a new FAI.
- Partial (delta) FAIs must cite the baseline FAIR by part number, revision and date.
- [An accepted FAI is not a product acceptance document](https://cartograph.ai/blog/first-article-inspection). Receiving inspection and certificates of conformance still apply to every shipment.
- Special process suppliers can satisfy Form 2 requirements by providing a detailed certificate of conformance referenced by the prime contractor’s FAIR.

Traceability records must link the purchase order, lot, serial number and finished part. Dimensional inspection data must show actual measured values, not only summary statements of conformity.

For more on how AS9100D traceability applies to aerospace sheet metal programs, see [AS9100 Certified Sheet Metal Fabrication for Aerospace](https://fabcon.com/articles/sheet-metal-fabrication/as9100-certified-sheet-metal-fabrication/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator).

[Request a DFM Review and Quote](https://fabcon.com/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator)

## Special Processes for Sheet Metal: Welding, Heat Treating and Chemical Processing

Form 2 captures each special process by provider and certificate number, which raises the question of who qualifies to perform that work. NADCAP, administered by the Performance Review Institute (PRI), is the industry-managed accreditation for aerospace special processes. A fabricator without in-house NADCAP accreditation must route those processes to accredited suppliers, while remaining responsible for conformity.

IAQG guidance requires that outsourced special processes be controlled as externally provided processes. Applicable technical and quality requirements must be defined in purchase orders or equivalent instructions, suppliers must be approved and monitored and objective evidence of conformity must be retained. Subcontracting a process does not transfer responsibility to the processor.

A verification file for an outsourced special process should include:

- The processor’s approval status and NADCAP scope
- The applicable process specification and certificate number
- Inspection and test reports
- Traceability linking all records to the purchase order, lot, serial number and finished part

Fabcon holds both certifications mentioned earlier and maintains documented quality management and traceability. Welding at Fabcon is manual and qualified rather than robotic. NADCAP special processes are generally routed to accredited suppliers, and buyers should confirm how that routing is documented within the fabricator’s quality system.

![Powder-coating and material-handling racks on the Fabcon shop floor.](https://cdn.aigrowthmarketer.co/1785163025306-7525a9a10f59.webp)**In-house finishing — powder coat, wet paint, and silkscreen — keeps cosmetic standards consistent and removes a supplier handoff from the build.**

## Shortlisting AS9100D Certified Sheet Metal Fabricators

Effective shortlists focus on capability and integration more than geography, though Fabcon’s Santa Ana, Southern California facility serves customers across the United States. Fabcon runs a single 118,000 sq. ft. facility in Santa Ana, founded in 1977, and consolidates fabrication, finishing and light electromechanical assembly under one roof. It performs laser cutting, CNC punching, forming, manual and qualified welding, powder coat, wet paint, silkscreen, hardware insertion and light electromechanical assembly in-house, with full traceability from prototype through production.

![A large laser cutting machine on the Fabcon fabrication floor.](https://cdn.aigrowthmarketer.co/1785163077556-8e313acfea6e.webp)**Precision starts at the cut. In-house laser cutting delivers tight-tolerance blanks with the speed and repeatability that high-mix, infrastructure-grade programs demand.**

Transactional build-to-print shops typically stop at cutting and forming, which leaves buyers managing multiple vendors per assembly. Large global contract manufacturers offer scale but often require high minimum volumes and long onboarding cycles, which can limit agility for high-mix programs with evolving bills of materials.

Sourcing by integrated capability, with fabrication, finishing and assembly under one roof, reduces vendor count and compresses lead times. That model also creates a single point of quality accountability. For a procurement-focused overview of aerospace sheet metal sourcing, see [Aerospace Sheet Metal Fabrication: Procurement Guide](https://fabcon.com/articles/sheet-metal-fabrication/aerospace-sheet-metal-forming/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator).

## Frequently Asked Questions

### AS9100D vs ISO 9001 for Sheet Metal Fabrication

[ISO 9001:2015 is the International Standard for quality management systems](https://www.iso.org/standard/62085.html). Its requirements are generic and apply to any organization regardless of type, size or sector. The standard has since been withdrawn and replaced by ISO 9001:2026 as the current edition. AS9100D is the aerospace extension of ISO 9001 and adds requirements specific to aviation, space and defense. These include risk management, configuration management, first article inspection, key characteristics and product and process control. Traceability requirements also extend beyond what ISO 9001 mandates. A fabricator holding only ISO 9001 has not met the additional AS9100D requirements. Fabcon holds both certifications and applies them across its manufacturing processes.

### Current AS9100 Revision for Sheet Metal Fabricators

[AS9100 Rev D (AS9100D), published September 20, 2016 and built on ISO 9001:2015, is the current revision of AS9100 required by most aerospace primes and Tier 1 customers on active programs](https://sma.nasa.gov/news/articles/newsitem/2024/04/17/status-of-the-development-of-ia9100-quality-management-systems-requirements-for-aviation-space-and-defense-organizations). Its successor, IA9100, is targeted for publication in late 2026. AS9100C certificates expired during the transition period that ended in September 2018. A fabricator presenting an AS9100C certificate is not certified to the active revision of the standard. Buyers benefit from confirming the specific revision on the OASIS record, not only the certificate document.

### How AS9100D Treats Welding

AS9100D requires that special processes, including welding, be controlled, documented and performed by qualified personnel or qualified suppliers. AS9100D certification itself does not confer welding accreditation. Welding qualification is governed by separate standards such as AWS D1.1 or customer-specific welding specifications. NADCAP accreditation covers certain aerospace welding processes. A buyer should ask whether welding is performed in-house with qualified welders and documented procedures, or routed to an accredited sub-tier supplier, and should request the applicable qualification records.

### ITAR Registration and Aerospace Sheet Metal Parts

[Under 22 CFR 122.1, anyone in the United States who manufactures, exports or temporarily imports defense articles, or furnishes defense services, must register with the Directorate of Defense Trade Controls](https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-122/section-122.1). A manufacturer who does not export must still register. Limited exemptions apply, including U.S. government officials acting officially, persons producing only unclassified technical data, Atomic Energy Act licensees and experimental or scientific fabrication. Brokering registration is addressed separately in Part 129. Not all aerospace sheet metal work involves USML-listed items. Whether ITAR registration is required depends on the specific program, the end use of the parts and the customer’s contract requirements. Buyers should ask fabricators directly about ITAR registration status and should not assume registration from an AS9100D certificate. Fabcon is not ITAR registered.

### How AS9100D Certification Relates to Part Conformance

An AS9100D certificate confirms that a quality management system meeting the standard’s requirements was in place at the time of the audit. It does not guarantee that a specific part or shipment conforms to drawing requirements. Conformance is established through first article inspection per AS9102, receiving inspection, certificates of conformance and dimensional and material traceability records tied to each shipment. An accepted FAIR confirms the process produced one conforming part under production conditions. Ongoing inspection still governs subsequent parts.

## Conclusion: Turning the Seven Checks into a Shortlist

A defensible shortlist for an AS9100D certified sheet metal fabricator rests on the same verifications covered in the seven-step sequence above, grouped into five records. These records cover OASIS status and scope match, sheet metal fabrication explicitly in scope, special-process routing with documented flow-down, AS9102 FAIR and material traceability records and export-control status confirmed directly.

Fabcon holds AS9100D and ISO 9001:2015 certifications and operates a single 118,000 sq. ft. Southern California facility. That single-facility model, described earlier, supports full traceability from prototype through production.

![Stacked precision sheet-metal enclosures with ventilation cutouts.](https://cdn.aigrowthmarketer.co/1785163212517-cdcceec4a830.webp)**Precision metal enclosures with tight, clean bends and consistent finishing — produced to ISO 9001:2015 and AS9100D standards with full traceability on every part.**

The evaluation framework is straightforward:

1. Verify certificate and scope in OASIS
2. Verify AS9102 FAIR and material traceability documents
3. Verify special-process routing and flow-down documentation
4. Verify integration, with fabrication, finishing and assembly under one roof
5. Verify export-control status directly

Send a drawing package to Fabcon for a DFM review and quote. One partner, one purchase order and full traceability from prototype through production.

[Request a Quote from Fabcon](https://fabcon.com/?utm_source=ai-growth-agent&utm_term=as9100d-certified-sheet-metal-fabricator)

## Read Next

- [AS9100 Certified Sheet Metal Fabrication for Aerospace](https://fabcon.com/articles/sheet-metal-fabrication/as9100-certified-sheet-metal-fabrication/)
- [AS9100 Sheet Metal Fabrication: Certified and Integrated](https://fabcon.com/articles/sheet-metal-fabrication/as9100-sheet-metal-fabrication/)
- [ISO Certified Sheet Metal Fabrication: A Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/iso-certified-sheet-metal-fabrication/)
- [Aerospace Sheet Metal Fabrication for Precision Programs](https://fabcon.com/articles/sheet-metal-fabrication/aerospace-sheet-metal-fabrication/)
- [Aerospace Sheet Metal Fabrication: A Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/aerospace-sheet-metal-forming/)

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---

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## Citations

- [Five Causes of Custom Enclosure Prototype Delays](https://fabcon.com/articles/sheet-metal-fabrication/custom-enclosure-prototype-delays-causes/)
- [Sheet Metal Fabrication for Enclosures: A Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/sheet-metal-fabrication-enclosures-guide/)
- [Seismic-Rated Server Rack Enclosures: A Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/seismic-rated-server-rack-enclosures/)
- [Precision Sheet Metal Laser Cutting: Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/precision-sheet-metal-laser-cutting/)
- [Medical Device Enclosures: A Compliance-Driven Buyer’s Guide](https://fabcon.com/articles/sheet-metal-fabrication/custom-medical-device-enclosures/)

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