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

650-488-040

ID 0.131
OD 0.314
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4880-118

ID 0.778
OD 1.497
Thickness 0.118
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4881-255

ID 0.78
OD 2.5
Thickness 0.255
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4882-032

ID 0.781
OD 1.124
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4883-121

ID 0.781
OD 1.312
Thickness 0.121
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4884-089

ID 0.782
OD 1.373
Thickness 0.089
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4885-061

ID 0.783
OD 1.25
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4886-095

ID 0.783
OD 1.375
Thickness 0.095
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4887-042

ID 0.783
OD 1.55
Thickness 0.042
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4888-056

ID 0.783
OD 1.749
Thickness 0.056
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4889-248

ID 0.783
OD 2.25
Thickness 0.248
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-489-060

ID 0.131
OD 0.334
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4890-125

ID 0.784
OD 1.0
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4891-030

ID 0.784
OD 1.014
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4892-032

ID 0.784
OD 1.062
Thickness 0.032
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4893-015

ID 0.784
OD 1.125
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4894-090

ID 0.784
OD 1.186
Thickness 0.09
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4895-057

ID 0.784
OD 1.202
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4896-123

ID 0.784
OD 1.249
Thickness 0.123
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4897-055

ID 0.784
OD 1.376
Thickness 0.055
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4898-060

ID 0.784
OD 1.5
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4899-059

ID 0.784
OD 1.75
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-49-015

ID 0.075
OD 0.185
Thickness 0.015
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-490-040

ID 0.131
OD 0.369
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4900-029

ID 0.785
OD 1.121
Thickness 0.029
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4901-046

ID 0.785
OD 1.185
Thickness 0.046
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4902-103

ID 0.785
OD 1.248
Thickness 0.103
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4903-057

ID 0.785
OD 1.25
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4904-062

ID 0.785
OD 1.375
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4905-060

ID 0.785
OD 1.442
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4906-114

ID 0.786
OD 1.436
Thickness 0.114
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4907-073

ID 0.786
OD 1.746
Thickness 0.073
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4908-036

ID 0.787
OD 1.342
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4909-095

ID 0.787
OD 1.374
Thickness 0.095
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-491-031

ID 0.131
OD 0.372
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4910-010

ID 0.79
OD 0.87
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4911-005

ID 0.791
OD 0.868
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4912-075

ID 0.791
OD 0.939
Thickness 0.075
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4913-126

ID 0.791
OD 1.439
Thickness 0.126
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4914-031

ID 0.792
OD 1.375
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4915-030

ID 0.799
OD 1.062
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4916-102

ID 0.799
OD 1.13
Thickness 0.102
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4917-057

ID 0.8
OD 0.984
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4918-031

ID 0.8
OD 1.061
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4919-071

ID 0.801
OD 1.301
Thickness 0.071
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-492-040

ID 0.131
OD 0.377
Thickness 0.04
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4920-005

ID 0.802
OD 1.124
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4921-060

ID 0.802
OD 1.251
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4922-124

ID 0.803
OD 1.18
Thickness 0.124
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-4923-179

ID 0.809
OD 0.976
Thickness 0.179
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.