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 1951–2000 of 25,000+ products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

290-100-031

ID 0.156
OD 0.108
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-101-031

ID 0.125
OD 0.375
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-102-031

ID 0.202
OD 0.38
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-103-031

ID 0.156
OD 0.437
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-104-031

ID 0.187
OD 0.437
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-105-031

ID 0.203
OD 0.437
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-106-045

ID 0.293
OD 0.437
Thickness 0.045
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-107-031

ID 0.32
OD 0.449
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-108-020

ID 0.282
OD 0.497
Thickness 0.02
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-109-032

ID 0.318
OD 0.498
Thickness 0.032
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-110-020

ID 0.193
OD 0.625
Thickness 0.02
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-111-062

ID 0.281
OD 0.625
Thickness 0.062
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-112-062

ID 0.601
OD 0.747
Thickness 0.062
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-113-062

ID 0.746
OD 0.747
Thickness 0.062
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-114-031

ID 0.635
OD 0.855
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-115-031

ID 0.629
OD 0.863
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-116-093

ID 0.762
OD 0.998
Thickness 0.093
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-117-025

ID 0.814
OD 1.091
Thickness 0.025
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

290-118-031

ID 0.753
OD 1.124
Thickness 0.031
Material Celcon
ID TOL +-.005
OD TOL +-.005
Quantity

300-10-005

ID 0.0
OD 0.106
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-100-010

ID 0.08
OD 0.138
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1000-062

ID 0.208
OD 0.626
Thickness 0.062
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1001-030

ID 0.209
OD 0.35
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1002-031

ID 0.209
OD 0.393
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1003-019

ID 0.209
OD 0.455
Thickness 0.019
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1004-030

ID 0.209
OD 0.606
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1005-031

ID 0.209
OD 0.623
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1006-037

ID 0.21
OD 0.561
Thickness 0.037
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1007-025

ID 0.211
OD 0.33
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1008-025

ID 0.211
OD 0.337
Thickness 0.025
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1009-005

ID 0.211
OD 0.435
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-101-015

ID 0.08
OD 0.204
Thickness 0.015
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1010-030

ID 0.211
OD 0.624
Thickness 0.03
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1011-062

ID 0.211
OD 1.374
Thickness 0.062
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1012-002

ID 0.212
OD 0.358
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1013-005

ID 0.212
OD 0.359
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1014-010

ID 0.212
OD 0.375
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1015-002

ID 0.212
OD 0.381
Thickness 0.002
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1016-040

ID 0.212
OD 0.406
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1017-017

ID 0.213
OD 0.313
Thickness 0.017
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1018-010

ID 0.213
OD 0.484
Thickness 0.01
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1019-024

ID 0.213
OD 0.625
Thickness 0.024
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-102-018

ID 0.081
OD 0.247
Thickness 0.018
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1020-005

ID 0.214
OD 0.375
Thickness 0.005
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1021-040

ID 0.214
OD 0.385
Thickness 0.04
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1022-064

ID 0.214
OD 0.515
Thickness 0.064
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1023-031

ID 0.214
OD 0.75
Thickness 0.031
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1024-023

ID 0.215
OD 0.312
Thickness 0.023
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1025-032

ID 0.215
OD 0.317
Thickness 0.032
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity

300-1026-039

ID 0.215
OD 0.386
Thickness 0.039
Material Stainless Steel
ID TOL +-.005
OD TOL +-.005
Quantity