Subcontracting to prime contractors
You do not need a federal contract to make federal parts. Most of the work flows through primes, and primes are required to look for small suppliers. Here is how that search works from your side.
Why primes need small shops
When a large company wins a federal contract above a threshold, FAR Part 19 requires it to submit a small business subcontracting plan with goals for how much of the work it will place with small firms, and with firms in the socioeconomic programs. The prime reports against those goals, and the government reviews the reports. Check the current threshold on acquisition.gov.
That creates steady demand for small suppliers who can meet aerospace and defense quality requirements. The prime's supply chain and small business teams spend real effort finding them. Your job is to be findable, qualified, and easy to onboard.
Subcontract work is also where many shops build the past performance they later cite on their own federal bids. A part made for a prime under a flowed down military drawing is evidence a contracting officer understands.
How primes find suppliers
Most large primes run a public supplier registration site, often called a supplier portal. You enter your company profile, codes, certifications, capabilities, and equipment. Buyers and commodity managers search that database when they need a new source. Register on the portals of the primes whose programs match your work, and keep the profiles current.
Primes also use the same public data you do. They search SAM.gov by NAICS and location. They look at who is already delivering similar parts to the government. They attend agency matchmaking events and industry days. Small business liaison officers at each prime take capability statements and route them.
Referrals matter more than any database. A special process house, a material distributor, or a tooling supplier that already serves a prime can introduce you. So can another small shop that is at capacity. Ask.
Large primes that publicly buy from small shops include Lockheed Martin, Boeing, Northrop Grumman, Raytheon, General Dynamics, BAE Systems, Blue Origin, and SpaceX. The mid-size primes and first tier suppliers in your region are often easier to reach and may be the better first step.
Approved supplier lists and onboarding
Being registered in a portal is not the same as being approved. Before a prime can place a purchase order for a flight or mission critical part, your shop usually has to be added to its approved supplier list. That typically involves a supplier survey or questionnaire, review of your quality system certificate, sometimes an on-site audit, and a first article on the initial part.
Quality certification shortens this. An AS9100 or ISO 9001 certificate from an accredited registrar is what most aerospace supplier surveys ask for first. Special processes such as heat treat, plating, welding, and non-destructive testing often require Nadcap accreditation or the prime's own process approval. See quality systems.
Approval is usually by commodity and sometimes by site. Being approved for machined aluminum details does not approve you for welded titanium. Expect to expand your approval one step at a time.
Flowdowns: the clauses that come with the order
When a prime places a purchase order under a federal contract, it passes along, or flows down, the clauses the government required of it. They arrive as a list of FAR and DFARS clause numbers, plus the prime's own terms and quality clauses. You are agreeing to them when you accept the order.
Flowdown clauses small shops see often
| Clause | Plain meaning | What it asks of you |
|---|---|---|
| DFARS 252.204-7012 | Safeguarding covered defense information | Protect controlled unclassified information on your systems and report cyber incidents |
| DFARS 252.225-7009 | Restriction on specialty metals | Certain metals must be melted or produced in the United States or a qualifying country |
| DFARS 252.225-7001 | Buy American and Balance of Payments | Domestic content rules on the end product |
| DFARS 252.246-7007 | Counterfeit electronic part detection | A system to avoid counterfeit electronic parts, if you supply electronics |
| DFARS 252.211-7003 | Item unique identification | Marking qualifying items with a unique identifier |
| FAR 52.222-50 | Combating trafficking in persons | Compliance and reporting obligations on labor practices |
| FAR 52.219-8 | Utilization of small business concerns | Give small firms a fair chance at your own subcontracts |
Clause text and applicability change. Read the current version on acquisition.gov before you accept an order.
Getting a first order
Pick a few primes or first tier suppliers that build what your parts go into, and focus on them. A shop that registers on twenty portals and follows up on none gets nothing. Register, then find the small business liaison and the commodity buyer for your kind of part, and send a one page capability statement that names the programs and part types you fit.
Say yes to the small, awkward job. First orders from primes are often rush details, a repair, or a part another supplier dropped. Deliver on time with clean paperwork and the next order is easier.
Quote fast and completely. Prime buyers judge suppliers first on responsiveness. A quote that arrives in a day with certs, lead time, and any exceptions stated clearly beats a lower price that arrives late.
Use public data to choose targets. Award history shows which primes hold the contracts in your part classes, and which of their sites are near you. A prime site with a large active contract and an approaching option year has a supply chain team under pressure to fill capacity.
Read every flowdown before you accept
A purchase order is a contract. If a flowdown requires a cyber standard, a specialty metals source, or a marking you cannot meet, say so before you accept. Silence is agreement.
Related guides
- Quality systems: AS9100 and ISO 9001What supplier surveys ask for first.
- ITAR, EAR, and DFARS basicsThe rules behind the most common flowdowns.
- CMMC for small shopsThe cyber requirement primes now ask about.
- Incumbent profilesSee which primes hold the contracts in your part classes.
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