Flat Washers in Every Size, Material & Tolerance

Flat washers are essential components in fastener assemblies, distributing load evenly across mating surfaces to prevent wear, protect finishes, and ensure joint integrity. As a leading flat washer manufacturer, Superior Washer & Gasket Corp supplies standard washers, large flat washers, and custom flat washers in aluminum, brass, copper, stainless steel, carbon steel, and nylon-manufactured to your exact specifications.

Our ISO 9001:2015 certified quality management system guarantees consistent dimensional accuracy across every order, from prototype quantities to high-volume production runs. Whether you need special flat washers for a unique application or mil-spec flat washers for aerospace and defense, we deliver reliable solutions made in the U.S.A.

Standard and custom flat washer sizes in stock
Wide selection of materials including stainless steel, brass, aluminum, and nylon
ISO 9001:2015 certified manufacturing and quality control
Custom flat washers produced to print or sample
Competitive pricing with fast turnaround

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Showing 2951–3000 of 25,000+ products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
300-1785-010	ID 0.374	OD 0.493	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1786-010	ID 0.374	OD 0.597	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1787-032	ID 0.374	OD 0.619	Thickness 0.032	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1788-005	ID 0.374	OD 0.746	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1789-010	ID 0.374	OD 0.984	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-179-029	ID 0.1	OD 0.157	Thickness 0.029	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1790-063	ID 0.375	OD 0.621	Thickness 0.063	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1791-010	ID 0.375	OD 0.658	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1792-025	ID 0.375	OD 0.686	Thickness 0.025	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1793-125	ID 0.375	OD 0.996	Thickness 0.125	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1794-005	ID 0.376	OD 0.543	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1795-023	ID 0.376	OD 0.592	Thickness 0.023	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1796-010	ID 0.376	OD 0.651	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1797-002	ID 0.376	OD 0.687	Thickness 0.002	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1798-010	ID 0.376	OD 0.688	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1799-060	ID 0.376	OD 0.689	Thickness 0.06	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-18-025	ID 0.0	OD 0.281	Thickness 0.025	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-180-010	ID 0.1	OD 0.187	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1800-088	ID 0.376	OD 0.691	Thickness 0.088	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1801-005	ID 0.376	OD 0.744	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1802-010	ID 0.376	OD 0.745	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1803-060	ID 0.376	OD 0.746	Thickness 0.06	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1804-015	ID 0.376	OD 0.75	Thickness 0.015	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1805-031	ID 0.376	OD 0.812	Thickness 0.031	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1806-062	ID 0.376	OD 0.85	Thickness 0.062	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1807-015	ID 0.376	OD 0.861	Thickness 0.015	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1808-060	ID 0.376	OD 0.862	Thickness 0.06	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1809-031	ID 0.376	OD 0.9	Thickness 0.031	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-181-005	ID 0.1	OD 0.34	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1810-061	ID 0.376	OD 1.25	Thickness 0.061	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1811-059	ID 0.376	OD 1.502	Thickness 0.059	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1812-005	ID 0.377	OD 0.438	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1813-010	ID 0.377	OD 0.439	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1814-010	ID 0.377	OD 0.456	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1815-003	ID 0.377	OD 0.47	Thickness 0.003	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1816-003	ID 0.377	OD 0.48	Thickness 0.003	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1817-002	ID 0.377	OD 0.485	Thickness 0.002	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1818-002	ID 0.377	OD 0.492	Thickness 0.002	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1819-005	ID 0.377	OD 0.493	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-182-024	ID 0.1	OD 0.369	Thickness 0.024	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1820-008	ID 0.377	OD 0.495	Thickness 0.008	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1821-010	ID 0.377	OD 0.495	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1822-037	ID 0.377	OD 0.495	Thickness 0.037	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1823-005	ID 0.377	OD 0.5	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1824-010	ID 0.377	OD 0.507	Thickness 0.01	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1825-005	ID 0.377	OD 0.521	Thickness 0.005	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1826-016	ID 0.377	OD 0.539	Thickness 0.016	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1827-004	ID 0.377	OD 0.562	Thickness 0.004	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1828-015	ID 0.377	OD 0.562	Thickness 0.015	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity
300-1829-001	ID 0.377	OD 0.625	Thickness 0.001	Material Stainless Steel	ID TOL +-.005	OD TOL +-.005	Quantity

Flat Washers in Every Size, Material & Tolerance

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A Special to You is Standard to Us

Made in USA

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South Carolina