Home | Flat Washers in Every Size, Material & Tolerance

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

Showing 3801–3850 of 25,000+ products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

300-2543-087

ID 0.629
OD 1.936
Thickness 0.087
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2544-061

ID 0.63
OD 0.746
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2545-003

ID 0.63
OD 0.75
Thickness 0.003
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2546-061

ID 0.63
OD 0.821
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2547-061

ID 0.63
OD 0.856
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2548-002

ID 0.63
OD 0.997
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2549-025

ID 0.63
OD 0.999
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-255-031

ID 0.121
OD 0.552
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2550-036

ID 0.63
OD 1.062
Thickness 0.036
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2551-183

ID 0.63
OD 1.12
Thickness 0.183
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2552-117

ID 0.63
OD 1.248
Thickness 0.117
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2553-072

ID 0.63
OD 1.25
Thickness 0.072
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2554-090

ID 0.63
OD 1.374
Thickness 0.09
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2555-060

ID 0.63
OD 2.25
Thickness 0.06
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2556-010

ID 0.631
OD 1.0
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2557-010

ID 0.631
OD 1.109
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2558-034

ID 0.631
OD 1.25
Thickness 0.034
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2559-059

ID 0.631
OD 1.255
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-256-040

ID 0.122
OD 0.341
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2560-010

ID 0.632
OD 0.713
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2561-061

ID 0.632
OD 0.713
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2562-010

ID 0.632
OD 0.75
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2563-061

ID 0.632
OD 0.75
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2564-031

ID 0.632
OD 0.811
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2565-061

ID 0.632
OD 0.811
Thickness 0.061
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2566-031

ID 0.633
OD 2.0
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2567-031

ID 0.633
OD 2.002
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2568-005

ID 0.635
OD 1.198
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2569-010

ID 0.636
OD 0.714
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-257-009

ID 0.122
OD 0.368
Thickness 0.009
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2570-005

ID 0.636
OD 0.752
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2570-010

ID 0.636
OD 0.752
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2571-032

ID 0.636
OD 0.795
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2572-032

ID 0.636
OD 0.844
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2573-010

ID 0.636
OD 0.85
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2574-020

ID 0.636
OD 0.862
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2575-032

ID 0.636
OD 0.911
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2576-005

ID 0.636
OD 1.202
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2577-003

ID 0.636
OD 1.372
Thickness 0.003
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2578-005

ID 0.639
OD 0.859
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2579-010

ID 0.639
OD 0.906
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-258-020

ID 0.122
OD 0.375
Thickness 0.02
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2580-029

ID 0.641
OD 0.997
Thickness 0.029
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2581-001

ID 0.641
OD 1.201
Thickness 0.001
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2582-002

ID 0.642
OD 0.972
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2583-059

ID 0.642
OD 1.25
Thickness 0.059
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2584-119

ID 0.642
OD 1.795
Thickness 0.119
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2585-031

ID 0.643
OD 0.811
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2586-031

ID 0.643
OD 0.84
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-2587-057

ID 0.643
OD 0.995
Thickness 0.057
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity