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

815-127-040

ID 0.331
OD 0.622
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-128-032

ID 0.332
OD 0.561
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-129-051

ID 0.332
OD 0.562
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-13-019

ID 0.075
OD 0.186
Thickness 0.019
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-130-030

ID 0.344
OD 0.556
Thickness 0.03
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-131-015

ID 0.344
OD 0.56
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-132-032

ID 0.344
OD 0.88
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-133-060

ID 0.346
OD 0.685
Thickness 0.06
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-134-031

ID 0.347
OD 0.501
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-135-063

ID 0.347
OD 0.748
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-136-027

ID 0.363
OD 0.563
Thickness 0.027
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-137-020

ID 0.364
OD 0.47
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-138-063

ID 0.375
OD 0.624
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-139-032

ID 0.376
OD 0.56
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-14-020

ID 0.089
OD 0.131
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-140-063

ID 0.377
OD 0.559
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-141-016

ID 0.378
OD 0.535
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-142-015

ID 0.378
OD 0.562
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-142-031

ID 0.378
OD 0.562
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-143-031

ID 0.378
OD 0.873
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-144-032

ID 0.379
OD 0.499
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-145-033

ID 0.379
OD 0.562
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-146-063

ID 0.379
OD 0.619
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-147-033

ID 0.38
OD 0.688
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-148-032

ID 0.382
OD 0.533
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-149-061

ID 0.384
OD 0.755
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-15-010

ID 0.092
OD 0.2
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-15-016

ID 0.092
OD 0.2
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-150-063

ID 0.387
OD 0.488
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-151-071

ID 0.388
OD 0.875
Thickness 0.071
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-152-032

ID 0.392
OD 0.625
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-153-065

ID 0.392
OD 1.0
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-154-032

ID 0.393
OD 0.499
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-155-032

ID 0.394
OD 0.561
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-156-032

ID 0.394
OD 0.562
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-157-063

ID 0.394
OD 0.564
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-158-061

ID 0.394
OD 0.624
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-159-060

ID 0.394
OD 0.627
Thickness 0.06
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-16-043

ID 0.095
OD 0.219
Thickness 0.043
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-160-062

ID 0.394
OD 0.687
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-161-063

ID 0.394
OD 0.751
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-162-031

ID 0.4
OD 0.544
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-163-063

ID 0.404
OD 0.625
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-164-126

ID 0.407
OD 0.75
Thickness 0.126
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-165-032

ID 0.408
OD 0.75
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-166-062

ID 0.409
OD 0.623
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-167-032

ID 0.41
OD 0.626
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-168-062

ID 0.41
OD 0.812
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-169-061

ID 0.41
OD 0.999
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-17-005

ID 0.097
OD 0.154
Thickness 0.005
Material Copper
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.