How to Sell CNC Machining Services to Aerospace OEMs

Aerospace machining is the gold standard for CNC job shops. The work is technically demanding, margins are strong, and contracts often run for years with predictable volumes. But winning aerospace work requires more than good machines and skilled operators. It demands specific certifications, documented processes, and a sales approach tailored to how aerospace OEMs evaluate and qualify suppliers. This guide covers what it actually takes to break into aerospace machining, from the certifications you need to the people you need to reach and the messages that get their attention.

AS9100 Certification: The Non-Negotiable Entry Ticket

AS9100 is the aerospace quality management standard built on ISO 9001 with additional requirements specific to aviation, space, and defense. Without AS9100, you are effectively invisible to major aerospace OEMs. Boeing, Airbus, Lockheed Martin, Raytheon, GE Aviation, Pratt & Whitney, and virtually every aerospace prime and Tier 1 supplier require AS9100 certification from their machining suppliers. The certification process takes 6 to 18 months and costs $15,000 to $50,000 depending on your shop's size and starting point. It covers quality management systems, risk management, configuration management, product safety, counterfeit parts prevention, and traceability requirements. If you are serious about aerospace work, start the AS9100 process now. Every month you delay is a month you cannot bid on aerospace RFQs. Many registrars offer gap assessments that identify exactly what you need to implement, giving you a clear roadmap.

NADCAP and Special Process Accreditation

NADCAP (National Aerospace and Defense Contractors Accreditation Program) accreditation is required for special processes like heat treating, chemical processing, welding, non-destructive testing, and surface finishing. If your shop performs any of these special processes in-house, NADCAP accreditation is essential for aerospace work. Even if you outsource special processes, your subcontractors need NADCAP accreditation, and you need documented controls for managing those subcontractors. Understanding NADCAP requirements and building a network of NADCAP-accredited subcontractors positions your shop as a turnkey supplier that can manage complete part manufacturing including secondary operations, which aerospace buyers value highly.

Understanding Aerospace Material Requirements

Aerospace parts involve materials that many general-purpose machine shops rarely encounter. Titanium alloys like Ti-6Al-4V, nickel superalloys like Inconel 718 and Waspaloy, high-strength aluminum alloys like 7075-T6 and 2024-T3, and specialty steels like 15-5PH and 17-4PH are standard in aerospace machining. Each material demands specific tooling strategies, cutting parameters, coolant approaches, and fixturing considerations. OEMs expect their machining suppliers to demonstrate proven experience with these materials, including documented cutting parameters, tool life data, and surface finish capabilities. If you want to sell aerospace machining, invest in building documented expertise with the materials your target aerospace segments use most frequently. Run test cuts, document your parameters, and build a portfolio of example parts in aerospace materials.

Who Makes the Buying Decision at Aerospace OEMs

Aerospace procurement involves multiple stakeholders, and understanding the decision-making chain is critical for your sales approach. The primary contacts are Commodity Managers who own specific part categories and manage supplier relationships, Procurement Engineers who evaluate technical capabilities and conduct supplier assessments, Supply Chain Managers who handle strategic sourcing decisions, and Quality Engineers who review your quality systems during supplier audits. Design Engineers influence supplier selection by specifying manufacturing requirements that favor certain shops. At most aerospace OEMs, the initial contact point should be the Commodity Manager or Procurement Engineer responsible for machined parts. These titles are searchable in professional databases, and reaching them with targeted outreach is far more effective than submitting through generic supplier registration portals.

The Aerospace Supplier Qualification Process

Qualifying as an aerospace supplier is a multi-step process that tests your patience but rewards persistence. The typical sequence starts with a supplier registration and self-assessment questionnaire. If your capabilities match a need, the OEM schedules a desk audit reviewing your quality manual, procedures, and certifications. This is followed by an on-site facility audit where quality engineers evaluate your equipment, processes, training records, measurement capabilities, and shop floor practices. After passing the audit, you receive a first-article order, usually a small batch of parts with full dimensional inspection and documentation requirements. First-article approval leads to inclusion on the approved supplier list, and production orders follow. The entire process takes 3 to 12 months. Start prospecting aerospace OEMs well before you need the work, because the qualification timeline means you cannot fill a sudden capacity gap with aerospace contracts.

Positioning Your Shop for Aerospace Work

Aerospace buyers evaluate machine shops on capability, capacity, quality systems, and risk. Your sales messaging needs to address all four dimensions. Capability means specific machines, tolerances, and materials. Do not say you do precision machining. Say you hold plus or minus 0.0002 inches on titanium structural components using your DMG Mori 5-axis with Renishaw probing. Capacity means available machine hours and the ability to scale. Aerospace programs ramp up and down, and OEMs need suppliers who can flex. Quality systems means AS9100 certification, statistical process control, full material traceability, and first-article inspection capability per AS9102. Risk mitigation means financial stability, business continuity plans, cybersecurity compliance (CMMC for defense-adjacent aerospace), and key person redundancy. Address these points explicitly in your outreach and on your website to demonstrate you understand what aerospace buyers care about.

Crafting Outreach to Aerospace Procurement Teams

Cold outreach to aerospace procurement contacts works, but only if your messaging demonstrates genuine aerospace expertise. Lead with your AS9100 certification and specific aerospace experience. Mention the aircraft platforms, engine programs, or satellite systems you have supported. Reference specific materials and tolerances relevant to the prospect's products. A procurement engineer at a landing gear manufacturer cares about your ability to machine high-strength steel forgings with tight GD&T requirements, not your general CNC capabilities. Research the prospect's current programs and supply chain challenges before reaching out. If they recently announced a production rate increase, mention your available capacity to support growth. If they are a defense contractor dealing with ITAR requirements, highlight your ITAR registration and facility security. This level of specificity in your outreach campaigns signals that you are a serious aerospace supplier, not a general-purpose shop fishing for any available work.

Building Aerospace Revenue Through Tier 2 and Tier 3 Suppliers

You do not have to sell directly to Boeing or Lockheed Martin to do aerospace work. The aerospace supply chain has multiple tiers, and Tier 2 and Tier 3 suppliers often have less demanding qualification requirements while still providing steady, high-margin work. These smaller aerospace companies frequently need additional machining capacity and are more accessible to outreach from job shops. Identify Tier 2 and Tier 3 aerospace suppliers in your region through industry directories, AS9100 certificate databases, and LinkedIn searches for companies with aerospace quality certifications. Many of these companies are themselves job shops that subcontract specific operations. The barrier to entry is lower, the sales cycle is shorter, and the relationships can grow into significant revenue streams.

Scaling Your Aerospace Sales Effort

The aerospace sales cycle is long, which means you need to be prospecting continuously rather than in bursts. Most shop owners or sales engineers cannot sustain the volume of personalized outreach needed to build a robust aerospace pipeline while also managing existing customer relationships and shop operations. This is where AI-powered outbound tools provide significant leverage. Prospect AI can identify procurement engineers and commodity managers at aerospace OEMs and Tier suppliers, research their specific programs and supply chain needs, and generate personalized outreach that demonstrates your aerospace expertise. The automated follow-up sequences keep your shop top of mind through the long qualification cycle, ensuring that when a procurement engineer needs to add a new machining supplier, your shop is the one they remember.

The Long Game Pays Off

Aerospace work requires upfront investment in certifications, equipment, and a sustained sales effort. The payoff is worth it. Aerospace contracts typically command 20 to 40 percent higher margins than commercial work, volumes are predictable, and relationships last for years. A single aerospace program qualification can generate millions of dollars in revenue over the life of the platform. Start by getting AS9100 certified, build your aerospace material and capability portfolio, and begin systematically reaching out to procurement contacts at OEMs and Tier suppliers. The shops that commit to aerospace now will be the ones with full order books when the next commercial aviation production surge arrives.