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 451–500 of 1,137 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
560-367-032	ID 0.206	OD 0.343	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-368-031	ID 0.206	OD 0.434	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-369-041	ID 0.206	OD 0.562	Thickness 0.041	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-37-020	ID 0.053	OD 0.186	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-370-009	ID 0.207	OD 0.31	Thickness 0.009	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-371-008	ID 0.207	OD 0.359	Thickness 0.008	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-372-032	ID 0.207	OD 0.375	Thickness 0.032	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-373-040	ID 0.207	OD 0.407	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-374-062	ID 0.207	OD 0.467	Thickness 0.062	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-375-020	ID 0.207	OD 0.5	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-375-031	ID 0.207	OD 0.5	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-376-063	ID 0.207	OD 0.529	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-377-058	ID 0.208	OD 0.5	Thickness 0.058	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-378-020	ID 0.209	OD 0.398	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-379-016	ID 0.212	OD 0.325	Thickness 0.016	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-38-016	ID 0.057	OD 0.108	Thickness 0.016	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-380-040	ID 0.212	OD 0.512	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-381-040	ID 0.213	OD 0.406	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-382-019	ID 0.214	OD 0.324	Thickness 0.019	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-383-059	ID 0.214	OD 0.624	Thickness 0.059	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-384-010	ID 0.215	OD 0.336	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-385-031	ID 0.215	OD 0.57	Thickness 0.031	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-386-040	ID 0.216	OD 0.408	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-387-020	ID 0.217	OD 0.309	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-388-041	ID 0.217	OD 0.465	Thickness 0.041	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-389-005	ID 0.218	OD 0.247	Thickness 0.005	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-39-020	ID 0.058	OD 0.124	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-390-036	ID 0.218	OD 0.367	Thickness 0.036	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-391-020	ID 0.219	OD 0.393	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-392-008	ID 0.219	OD 0.56	Thickness 0.008	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-393-040	ID 0.22	OD 0.374	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-394-035	ID 0.22	OD 0.498	Thickness 0.035	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-394-061	ID 0.22	OD 0.498	Thickness 0.061	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-395-005	ID 0.22	OD 0.561	Thickness 0.005	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-396-063	ID 0.22	OD 1.249	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-397-010	ID 0.221	OD 0.31	Thickness 0.01	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-398-002	ID 0.221	OD 0.436	Thickness 0.002	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-399-062	ID 0.221	OD 0.558	Thickness 0.062	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-40-025	ID 0.058	OD 0.177	Thickness 0.025	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-400-063	ID 0.222	OD 0.625	Thickness 0.063	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-401-004	ID 0.225	OD 0.75	Thickness 0.004	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-402-020	ID 0.227	OD 0.312	Thickness 0.02	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-403-030	ID 0.227	OD 0.373	Thickness 0.03	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-404-040	ID 0.229	OD 0.5	Thickness 0.04	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-405-014	ID 0.229	OD 0.546	Thickness 0.014	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-406-025	ID 0.23	OD 0.578	Thickness 0.025	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-407-062	ID 0.233	OD 0.633	Thickness 0.062	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-408-025	ID 0.234	OD 0.498	Thickness 0.025	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-409-041	ID 0.238	OD 0.532	Thickness 0.041	Material Brass	ID TOL +-.005	OD TOL +-.005	Quantity
560-41-015	ID 0.06	OD 0.214	Thickness 0.015	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.