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

650-6678-116

ID 0.43
OD 1.528
Thickness 0.116
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6679-144

ID 0.987
OD 1.568
Thickness 0.144
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.010
Quantity

650-668-060

ID 0.148
OD 0.376
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6680-115

ID 1.194
OD 1.879
Thickness 0.115
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.010
Quantity

650-6681-025

ID 1.642
OD 2.373
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.010
OD TOL +-.010
Quantity

650-6682-040

ID 0.19
OD 0.373
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6683-060

ID 0.192
OD 0.405
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6684-022

ID 0.192
OD 0.438
Thickness 0.022
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6685-100

ID 0.331
OD 0.787
Thickness 0.1
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6686-117

ID 0.391
OD 0.998
Thickness 0.117
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6687-024

ID 0.944
OD 1.201
Thickness 0.024
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6688-025

ID 0.128
OD 0.281
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6689-030

ID 0.384
OD 0.62
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-669-002

ID 0.148
OD 0.391
Thickness 0.002
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6690-179

ID 0.626
OD 1.754
Thickness 0.179
Material Steel Low Carbon
ID TOL +-.010
OD TOL +-.010
Quantity

650-6691-003

ID 0.173
OD 0.364
Thickness 0.003
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6692-059

ID 0.267
OD 0.5
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6693-061

ID 0.191
OD 0.501
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6694-050

ID 0.263
OD 0.624
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6695-031

ID 0.652
OD 0.856
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6696-015

ID 0.78
OD 1.25
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6697-176

ID 0.463
OD 1.372
Thickness 0.176
Material Steel Low Carbon
ID TOL +-.010
OD TOL +-.010
Quantity

650-6698-005

ID 1.308
OD 1.563
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6699-010

ID 2.093
OD 2.45
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-67-028

ID 0.085
OD 0.25
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-670-045

ID 0.148
OD 0.424
Thickness 0.045
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-6700-159

ID 1.515
OD 2.495
Thickness 0.159
Material Steel Low Carbon
ID TOL +-.010
OD TOL +-.010
Quantity

650-6701-181

ID 1.437
OD 2.747
Thickness 0.181
Material Steel Low Carbon
ID TOL +-.010
OD TOL +-.010
Quantity

650-671-062

ID 0.148
OD 0.437
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-672-050

ID 0.148
OD 0.439
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-673-040

ID 0.148
OD 0.467
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-674-025

ID 0.148
OD 0.49
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-675-046

ID 0.148
OD 0.625
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-676-030

ID 0.149
OD 0.249
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-677-032

ID 0.149
OD 0.265
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-678-028

ID 0.149
OD 0.276
Thickness 0.028
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-679-050

ID 0.149
OD 0.284
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-68-020

ID 0.085
OD 0.313
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-680-090

ID 0.149
OD 0.295
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-681-031

ID 0.149
OD 0.343
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-682-031

ID 0.149
OD 0.375
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-683-031

ID 0.149
OD 0.432
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-684-040

ID 0.149
OD 0.467
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-685-010

ID 0.149
OD 0.496
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-686-062

ID 0.149
OD 0.5
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-687-031

ID 0.149
OD 0.559
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-688-049

ID 0.149
OD 0.621
Thickness 0.049
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-689-060

ID 0.149
OD 0.75
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-69-015

ID 0.086
OD 0.157
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-690-016

ID 0.15
OD 0.248
Thickness 0.016
Material Steel Low Carbon
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.