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

750-40-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-42-002

ID 0.321
OD 0.88
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-42-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-43-002

ID 0.325
OD 0.812
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-43-002t

ID
OD
Thickness 0.002
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-44-062

ID 0.395
OD 1.0
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-44-062t

ID
OD
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-45-010

ID 0.5
OD 1.375
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-45-010t

ID
OD
Thickness 0.01
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-46-062

ID 0.5
OD 1.5
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-46-062t

ID
OD
Thickness 0.062
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-48-031

ID 0.796
OD 1.5
Thickness 0.031
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-48-031t

ID
OD
Thickness 0.031
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-030

ID 0.191
OD 0.755
Thickness 0.03
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-030t

ID
OD
Thickness 0.03
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-040

ID 0.25
OD 1.25
Thickness 0.04
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

750-49-040t

ID
OD
Thickness 0.04
Material Mica
ID TOL +-.005
OD TOL +-.005
Quantity

815-10-015

ID 0.045
OD 0.101
Thickness 0.015
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-100-063

ID 0.283
OD 0.872
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-101-023

ID 0.284
OD 0.439
Thickness 0.023
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-102-062

ID 0.284
OD 0.625
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-103-033

ID 0.284
OD 0.685
Thickness 0.033
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-104-030

ID 0.286
OD 0.498
Thickness 0.03
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-105-040

ID 0.29
OD 0.434
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-106-040

ID 0.29
OD 0.501
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-107-032

ID 0.312
OD 0.501
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-107-040

ID 0.312
OD 0.501
Thickness 0.04
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-108-039

ID 0.313
OD 0.45
Thickness 0.039
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-109-061

ID 0.313
OD 0.499
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-11-030

ID 0.066
OD 0.204
Thickness 0.03
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-110-032

ID 0.314
OD 0.511
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-111-062

ID 0.314
OD 0.75
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-112-018

ID 0.315
OD 0.403
Thickness 0.018
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-113-026

ID 0.315
OD 0.451
Thickness 0.026
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-114-063

ID 0.315
OD 0.467
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-115-032

ID 0.315
OD 0.5
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-116-051

ID 0.316
OD 0.75
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-117-032

ID 0.317
OD 0.562
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-117-062

ID 0.317
OD 0.562
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-118-061

ID 0.317
OD 0.623
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-119-065

ID 0.317
OD 0.687
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-12-016

ID 0.071
OD 0.125
Thickness 0.016
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-120-019

ID 0.318
OD 0.407
Thickness 0.019
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-121-062

ID 0.321
OD 0.495
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-122-011

ID 0.329
OD 0.546
Thickness 0.011
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-123-025

ID 0.329
OD 0.564
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-123-062

ID 0.329
OD 0.564
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-124-032

ID 0.33
OD 0.56
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-125-009

ID 0.33
OD 0.561
Thickness 0.009
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-126-031

ID 0.331
OD 0.563
Thickness 0.031
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.