Home | Round Flat Washers - Precision Stamped in Any Material

Round Flat Washers - Precision Stamped in Any Material

Round flat washers are fundamental components in fastener assemblies, providing load distribution, surface protection, and vibration resistance across virtually every industry. Superior Washer & Gasket Corp manufactures round flat washers in a comprehensive range of materials-including aluminum, brass, copper, stainless steel, carbon steel, nylon, PTFE, and specialty alloys-in standard and custom sizes to precise tolerances.

As an ISO 9001:2015 certified flat washer manufacturer, we maintain one of the largest inventories of round flat washers available from a domestic source. Whether you need standard washers by the thousand or special flat washers produced to your custom specifications, our washer manufacturing capabilities deliver fast, reliable solutions made in the U.S.A.

  • Round flat washers in metals, plastics, and specialty materials
  • Broad standard size inventory for fast delivery
  • Custom flat washers stamped to your specifications
  • ISO 9001:2015 certified quality management
  • Made in the U.S.A. with material certifications available
SKU ID OD Thickness Material ID TOL OD TOL Quantity

220-93-031

ID 0.109
OD 0.312
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-94-031

ID 0.109
OD 0.375
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-95-010

ID 0.116
OD 0.163
Thickness 0.01
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-96-016

ID 0.116
OD 0.187
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-97-016

ID 0.116
OD 0.218
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-97-031

ID 0.116
OD 0.218
Thickness 0.031
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-98-062

ID 0.116
OD 0.25
Thickness 0.062
Material Nylon
ID TOL +-.005
OD TOL +-.005
Quantity

220-99-016

ID 0.116
OD 0.281
Thickness 0.016
Material Nylon
ID TOL +-.005
OD TOL +-.005
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

Meeting Your Manufacturing, Material, And Quality Requirements

Numerous factors affect the quality and long-term performance of flat washers. As a U.S.-based manufacturer and an ISO 9001:2015 certified company, we assure you that all parts we ship are manufactured domestically. We offer metal washers made from a diverse range of materials, including conventional options like copper stampings, aluminum washers, and stainless steel washers (which can include passivation). We also specialize in plastic washers and exotic materials like Inconel, Nylatron washers, and Monel. Additionally, we can quote a variety of platings including zinc, cad yellow, and black ox to suit your specific needs.