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 1201–1250 of 25,000+ products

SKU	ID	OD	Thickness	ID (MM)	OD (MM)	Thickness (MM)	Material	ID TOL	OD TOL	A	B	C	ID MM TOL	OD MM TOL	Quantity
220-80-031	ID 0.104	OD 0.25	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-81-031	ID 0.104	OD 0.281	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-82-031	ID 0.104	OD 0.312	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-83-062	ID 0.104	OD 0.343	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-84-031	ID 0.104	OD 0.375	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-85-062	ID 0.104	OD 0.437	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-86-031	ID 0.104	OD 0.5	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-87-031	ID 0.104	OD 0.562	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-88-031	ID 0.104	OD 0.625	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-89-016	ID 0.109	OD 0.181	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-90-031	ID 0.109	OD 0.187	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-91-016	ID 0.109	OD 0.218	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-92-062	ID 0.109	OD 0.25	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-93-031	ID 0.109	OD 0.312	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-94-031	ID 0.109	OD 0.375	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-95-010	ID 0.116	OD 0.163	Thickness 0.01	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-96-016	ID 0.116	OD 0.187	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-97-016	ID 0.116	OD 0.218	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-97-031	ID 0.116	OD 0.218	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-98-062	ID 0.116	OD 0.25	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
220-99-016	ID 0.116	OD 0.281	Thickness 0.016	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Nylon	ID TOL +-.005	OD TOL +-.005	A Not available	B Not available	C Not available	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-10-025	ID Not available	OD Not available	Thickness 0.025	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.218	B 0.141	C 0.125	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-10-040	ID Not available	OD Not available	Thickness 0.04	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.218	B 0.141	C 0.125	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-11-025	ID Not available	OD Not available	Thickness 0.025	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.29	B 0.141	C 0.125	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-12-030	ID Not available	OD Not available	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.375	B 0.252	C 0.2	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-13-030	ID Not available	OD Not available	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.5	B 0.255	C 0.193	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-13-040	ID Not available	OD Not available	Thickness 0.04	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.5	B 0.255	C 0.193	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-14-031	ID Not available	OD Not available	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.687	B 0.49	C 0.328	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-15-020	ID Not available	OD Not available	Thickness 0.02	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.703	B 0.492	C 0.379	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-15-031	ID Not available	OD Not available	Thickness 0.031	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.703	B 0.492	C 0.379	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-16-062	ID Not available	OD Not available	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.71	B 0.54	C 0.203	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-17-060	ID Not available	OD Not available	Thickness 0.06	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.75	B 0.188	C 0.145	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-18-043	ID Not available	OD Not available	Thickness 0.043	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.75	B 0.253	C 0.191	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-19-015	ID Not available	OD Not available	Thickness 0.015	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.75	B 0.314	C 0.245	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-19-025	ID Not available	OD Not available	Thickness 0.025	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.75	B 0.314	C 0.245	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-20-062	ID Not available	OD Not available	Thickness 0.062	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.82	B 0.313	C 0.251	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-21-030	ID Not available	OD Not available	Thickness 0.03	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.875	B 0.377	C 0.314	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-22-060	ID Not available	OD Not available	Thickness 0.06	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.88	B 0.376	C 0.289	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-23-064	ID Not available	OD Not available	Thickness 0.064	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.891	B 0.376	C 0.302	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-24-040	ID Not available	OD Not available	Thickness 0.04	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 0.937	B 0.252	C 0.182	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-25-090	ID Not available	OD Not available	Thickness 0.09	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 1.0	B 0.376	C 0.302	ID MM TOL Not available	OD MM TOL Not available	Quantity
250-26-040	ID Not available	OD Not available	Thickness 0.04	ID (MM) Not available	OD (MM) Not available	Thickness (MM) Not available	Material Not available	ID TOL Not available	OD TOL Not available	A 1.062	B 0.252	C 0.182	ID MM TOL Not available	OD MM TOL Not available	Quantity
260-3100	ID Not available	OD Not available	Thickness Not available	ID (MM) 0.991	OD (MM) 2.261	Thickness (MM) 0.287	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3101	ID Not available	OD Not available	Thickness Not available	ID (MM) 0.991	OD (MM) 4.42	Thickness (MM) 0.561	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3102	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.092	OD (MM) 2.565	Thickness (MM) 0.326	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3103	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.245	OD (MM) 3.175	Thickness (MM) 0.403	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3104	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.27	OD (MM) 3.835	Thickness (MM) 0.487	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3105	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.397	OD (MM) 3.175	Thickness (MM) 0.403	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3106	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.422	OD (MM) 6.35	Thickness (MM) 0.806	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
260-3107	ID Not available	OD Not available	Thickness Not available	ID (MM) 1.473	OD (MM) 2.337	Thickness (MM) 0.297	Material Nylon	ID TOL Not available	OD TOL Not available	A Not available	B Not available	C Not available	ID MM TOL 0.127	OD MM TOL 0.127	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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