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

650-962-048

ID 0.172
OD 0.562
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-963-063

ID 0.172
OD 0.75
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-964-015

ID 0.173
OD 0.25
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-965-005

ID 0.173
OD 0.265
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-966-046

ID 0.173
OD 0.295
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-967-025

ID 0.173
OD 0.315
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-967-036

ID 0.173
OD 0.315
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-968-030

ID 0.173
OD 0.351
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-969-010

ID 0.173
OD 0.375
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-97-015

ID 0.094
OD 0.186
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-970-062

ID 0.173
OD 0.434
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-971-040

ID 0.173
OD 0.51
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-972-062

ID 0.173
OD 0.531
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-973-060

ID 0.173
OD 0.626
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-974-060

ID 0.173
OD 0.715
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-975-031

ID 0.173
OD 0.746
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-976-031

ID 0.173
OD 0.998
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-977-062

ID 0.173
OD 1.001
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-978-049

ID 0.174
OD 0.276
Thickness 0.049
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-979-032

ID 0.174
OD 0.279
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-98-020

ID 0.094
OD 0.203
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-980-030

ID 0.174
OD 0.294
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-981-030

ID 0.174
OD 0.3
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-982-030

ID 0.174
OD 0.31
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-983-030

ID 0.174
OD 0.312
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-984-028

ID 0.174
OD 0.313
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-985-062

ID 0.174
OD 0.316
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-986-044

ID 0.174
OD 0.341
Thickness 0.044
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-987-034

ID 0.174
OD 0.344
Thickness 0.034
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-988-030

ID 0.174
OD 0.37
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-989-036

ID 0.174
OD 0.373
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-99-030

ID 0.094
OD 0.218
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-990-030

ID 0.174
OD 0.375
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-991-061

ID 0.174
OD 0.376
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-992-032

ID 0.174
OD 0.377
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-993-030

ID 0.174
OD 0.381
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-994-049

ID 0.174
OD 0.387
Thickness 0.049
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-995-029

ID 0.174
OD 0.392
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-996-027

ID 0.174
OD 0.395
Thickness 0.027
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-997-032

ID 0.174
OD 0.407
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-998-040

ID 0.174
OD 0.414
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-999-040

ID 0.174
OD 0.437
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

675-10-002

ID 0.035
OD 0.073
Thickness 0.002
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-100-005

ID 0.125
OD 0.375
Thickness 0.005
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-101-016

ID 0.139
OD 0.31
Thickness 0.016
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-102-025

ID 0.195
OD 0.436
Thickness 0.025
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-103-032

ID 0.328
OD 0.495
Thickness 0.032
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-104-010

ID 0.638
OD 0.794
Thickness 0.01
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-105-010

ID 0.26
OD 0.732
Thickness 0.031
Material Phosphor Bronze
ID TOL +-.005
OD TOL +-.005
Quantity

675-106-016

ID 0.283
OD 0.606
Thickness 0.031
Material Phosphor Bronze
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.