Brass Flat Washers - Corrosion-Resistant Metal Washers

Brass flat washers provide natural corrosion resistance, electrical conductivity, and an attractive appearance for use in plumbing, marine, electrical, and decorative fastener applications. Superior Washer & Gasket Corp manufactures brass washers in a wide range of standard and custom sizes, delivering consistent dimensional quality from our ISO 9001:2015 certified facility.

We supply brass flat washers from stock inventory and produce custom brass washers to your exact OD, ID, and thickness specifications. All metal washers are made in the U.S.A. with full material traceability and competitive pricing for prototype and production orders.

Natural corrosion resistance and conductivity
Wide range of standard brass flat washer sizes in stock
Custom brass washers to specification
ISO 9001:2015 certified quality control
Made in the U.S.A.

Showing 401–450 of 1,137 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
560-322-005	ID 0.189	OD 0.5	Thickness 0.005	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-322-050	ID 0.189	OD 0.5	Thickness 0.05	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-323-062	ID 0.189	OD 0.715	Thickness 0.062	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-324-050	ID 0.189	OD 0.748	Thickness 0.05	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-325-059	ID 0.189	OD 1.001	Thickness 0.059	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-326-010	ID 0.19	OD 0.261	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-327-063	ID 0.19	OD 0.342	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-328-016	ID 0.19	OD 0.372	Thickness 0.016	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-329-030	ID 0.19	OD 0.498	Thickness 0.03	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-33-020	ID 0.05	OD 0.109	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-330-032	ID 0.19	OD 0.624	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-331-032	ID 0.19	OD 0.875	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-332-005	ID 0.191	OD 0.246	Thickness 0.005	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-333-010	ID 0.191	OD 0.25	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-334-017	ID 0.191	OD 0.279	Thickness 0.017	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-335-025	ID 0.191	OD 0.359	Thickness 0.025	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-336-030	ID 0.191	OD 0.562	Thickness 0.03	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-337-062	ID 0.191	OD 0.719	Thickness 0.062	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-338-020	ID 0.191	OD 0.75	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-339-030	ID 0.192	OD 0.501	Thickness 0.03	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-34-031	ID 0.05	OD 0.312	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-340-015	ID 0.193	OD 0.334	Thickness 0.015	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-341-003	ID 0.193	OD 0.343	Thickness 0.003	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-342-063	ID 0.193	OD 0.406	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-343-010	ID 0.193	OD 0.432	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-344-036	ID 0.193	OD 0.494	Thickness 0.036	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-345-008	ID 0.193	OD 0.685	Thickness 0.008	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-346-030	ID 0.194	OD 0.294	Thickness 0.03	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-347-020	ID 0.195	OD 0.31	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-348-041	ID 0.195	OD 0.438	Thickness 0.041	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-349-040	ID 0.196	OD 0.382	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-35-016	ID 0.051	OD 0.101	Thickness 0.016	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-350-020	ID 0.197	OD 0.302	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-351-031	ID 0.197	OD 0.5	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-352-060	ID 0.197	OD 0.593	Thickness 0.06	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-353-060	ID 0.197	OD 0.625	Thickness 0.06	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-354-078	ID 0.198	OD 0.374	Thickness 0.078	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-355-047	ID 0.198	OD 0.624	Thickness 0.047	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-356-032	ID 0.199	OD 0.354	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-357-031	ID 0.199	OD 0.367	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-358-031	ID 0.201	OD 0.312	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-359-020	ID 0.201	OD 0.372	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-36-032	ID 0.052	OD 0.168	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-360-063	ID 0.202	OD 0.53	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-361-016	ID 0.203	OD 0.283	Thickness 0.016	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-362-037	ID 0.204	OD 0.44	Thickness 0.037	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-363-035	ID 0.204	OD 0.561	Thickness 0.035	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-364-010	ID 0.205	OD 0.623	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-365-060	ID 0.205	OD 0.652	Thickness 0.06	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-366-020	ID 0.206	OD 0.277	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity

Brass Flat Washer Frequently Asked Questions

Below are answers to some of the most common questions about brass flat washers.

What are brass flat washers?
Brass flat washers are corrosion-resistant metal washers manufactured from copper-zinc alloy (brass). They provide natural corrosion resistance, electrical conductivity, and an attractive appearance, making them well suited for plumbing, marine, electrical, and decorative fastener applications. Superior Washer stocks over 1,100 brass flat washer sizes and produces custom configurations to specification.

What are the main advantages of brass washers over steel washers?
Brass washers are naturally corrosion resistant without plating, electrically conductive, non-sparking, and non-magnetic. They are also more visually appealing than zinc-plated steel, making them a common choice in decorative or visible assemblies. In plumbing and marine environments, brass resists dezincification better than many other alloys.

What brass alloy do you use for flat washers?
Superior Washer brass flat washers are typically manufactured from Brass Alloy 260 (cartridge brass, 70% copper / 30% zinc), which offers the best balance of formability, corrosion resistance, and strength for washer applications.

Can you produce custom brass flat washers?
Yes. We manufacture custom brass washers to your exact OD, ID, and thickness specifications, from prototype quantities through full production runs. Contact us via the Quick Quote form or by phone.

Are your brass flat washers made in the USA?
Yes. All brass flat washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System with full material traceability. Material certifications are available upon request.

Superior Washer also stocks flat washers in aluminum, stainless steel, and other materials to fit a range of applications. Explore our full flat washers collection to find the right option for your project.