Key Takeaways
- Domestic manufacturing shortens the feedback loop. When a question comes up mid-run, you reach the people operating the press the same day. Overseas sourcing puts a time zone and a translation layer between you and the answer.
- Thin material is where capability shows. Holding a thickness tolerance of .0005 inch is a different discipline than stamping heavy gauge stock. Ask any prospective supplier what they hold at your thinnest requirement.
- No tooling charge changes your math. Tooling fees turn a small prototype run into an expensive commitment. Removing that charge lets you order what you need, not what amortizes a die.
- Your print is the specification. Custom means the part is built to your dimensions, not selected from a catalog that happens to be close. Nothing gets rounded to the nearest stock size.
- Certification and traceability travel with the part. AS9100 and ISO 9001 registration, DFARS-compliant material, and documented lot traceability are standard, not upgrades. That paperwork is what lets your quality team accept the shipment.
What a Quality Promise Should Actually Mean
Most manufacturers say they are committed to quality. The phrase means very little on its own, because no supplier advertises the opposite. What matters is whether a company states specific numbers in writing and holds them across every order you place.
For flat washers, those numbers are thickness tolerance, inside and outside diameter tolerance, flatness, burr condition, and material certification. A supplier who answers those five questions directly is telling you something real. A supplier who responds with general reassurance is not.
Below is what we commit to as a domestic manufacturer, and why each commitment exists. We have made these parts in New Jersey since 1919, long enough to know where the failures come from.
The Tolerances We Hold
We typically work to .0005 inch on thickness and between .001 and .005 inch on inside and outside diameters, depending on the material and the geometry. Our range runs from .0005 inch through .062 inch in thickness, with heavier gauges available. Those figures cover most of the flat washers, shims, discs, and spacers we produce, along with the plastic washers and spacers we make in Nylon, Teflon, and Mylar.
Thin stock is unforgiving in a way heavier material is not. Below about .010 inch, burr control, flatness, and handling damage become the real constraints, not the press itself. Specializing in that range is a deliberate choice, and it is where a general stamping shop tends to struggle.
Tolerance capability also depends on geometry, not just material. A large outside diameter in thin stock behaves differently under a die than a small one, and a part with multiple holes introduces positional requirements that a simple ring does not. During quoting, we’ll tell you when a print pushes into territory that needs a conversation.
Materials We Work In
Material availability affects both lead time and cost. We keep a broad range of stock on hand, which often means a job can start immediately rather than waiting on a mill order.
- Stainless steel: A variety of grades and hardness specifications, including pre-tempered and annealed conditions.
- Copper, brass, and phosphor bronze: Chosen where conductivity, sealing, or spring characteristics matter.
- Aluminum and carbon steel: Standard workhorse materials for weight-sensitive and general-purpose applications.
- Beryllium copper, Inconel, and Monel: Semi-exotic alloys for high-temperature, corrosive, or demanding electrical environments.
- Engineered plastics and films: PTFE, Nylon, Nylatron, Delrin, Mylar, and Kapton where a non-metallic part is required.
Flatness is the specification buyers forget most often. A washer can measure perfectly for thickness and diameter and still cause trouble if it doesn’t sit flat under load, and in thin material flatness largely depends on how the part was stamped and handled afterward.
Why Domestic Manufacturing Matters Here
The argument for buying American-made precision parts is often framed as a matter of principle. The practical argument is stronger. When a print revision arrives mid-production, a domestic supplier can stop the run, confirm the change, and restart.
There is also the compliance dimension. Defense and aerospace programs require specialty metals from qualifying sources, and a domestic supply chain makes that documentation straightforward rather than an exercise in tracing a distributor back through several countries. Every part we ship is made in our own facility, and we handle raw material receiving, tool building, stamping, deburring, and final inspection in-house, as described on our about us page.
Keeping the full process under one roof also means nobody has to coordinate between three companies when something needs attention. The person who can answer your question works down the hall from the press.
Our Commitments, Stated Plainly
These are the commitments we make on every order, whether it is a prototype quantity or a recurring production release. They are worth comparing directly against what other suppliers will put in writing.
- Quotes within 24 to 48 hours: You get pricing and a production timeline fast enough to keep your own schedule intact.
- No tooling charges, ever: We build the tooling your part requires and absorb that cost rather than passing it through.
- We store your tooling: Repeat orders run faster and cost less because the setup already exists.
- Dates we intend to hit: We quote timelines we can support, not the timeline that wins the order.
- Documentation to support traceability: Certificates of conformance and material traceability accompany the parts.
None of these commitments is unusual on its own. Taken together, and applied consistently across a century of orders, they’re why customers keep sending us prints rather than shopping each job.
How We Control Quality on the Floor
Quality control that happens only at final inspection discovers problems after the material is already consumed. We inspect incoming raw stock before it reaches a press, because a thickness variation in the coil becomes a thickness variation in every part stamped from it.
In-process checks continue through stamping and deburring, and final inspection verifies dimensions against the print before anything ships. Our systems meet AS9100 and ISO 9001 requirements, and the same discipline applies whether an order is for one washer or several thousand across the industries we serve.
What Ships With Every Order
Documentation travels with the parts rather than following a week later. A certificate of conformance states that the lot was produced to your print, and material certifications trace the stock back to the mill that produced it.
For defense and aerospace work we confirm DFARS-compliant material sourcing as part of that package. If your quality group needs a specific format or additional records, tell us during quoting and we will build it into the job, as we do across the applications we support.
Working From Your Blueprint
The process is deliberately short. Most of what slows a custom part down is back-and-forth over details that should have been settled during quoting, so we settle them there.
- Send the print: Email your blueprint with quantity and material. We will return any required NDA promptly.
- Review the quote: You receive transparent pricing with no tooling fee and a clear production timeline.
- Approve and schedule: On approval, the job enters our production schedule with a committed delivery date.
- Receive parts and documentation: Parts arrive with the certifications your quality team needs to accept them.
For dimensional context, ASME publishes B18.22.1 for plain washers, which covers general-purpose Type A and Type B sizes. Most of what we make falls outside those tables, which is the point of working from a custom print instead of a catalog.
Repeat orders are where stored tooling pays off most clearly. The setup already exists, the process is proven against your print, and the second run behaves like the first, which is exactly what a production schedule needs.
Request a Quote From Brewster Washers
A quality promise is only as good as what a supplier puts in writing and repeats on the twentieth order. Ours is specific: stated tolerances, documented materials, no tooling charges, and delivery dates we hold.
Send us your blueprint, and we will come back within 24 to 48 hours with pricing and a timeline. Request a quote to get us started on your next run.