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

Showing 13251–13300 of 17,982 products

SKU ID OD Thickness Material ID TOL OD TOL Quantity

650-3376-050

ID 0.385
OD 0.5
Thickness 0.05
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3377-020

ID 0.385
OD 0.505
Thickness 0.02
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3378-031

ID 0.385
OD 0.561
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3379-018

ID 0.385
OD 0.574
Thickness 0.018
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-338-031

ID 0.124
OD 0.468
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3380-008

ID 0.385
OD 0.684
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3381-021

ID 0.385
OD 0.747
Thickness 0.021
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3382-119

ID 0.386
OD 0.436
Thickness 0.119
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3383-033

ID 0.386
OD 0.607
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3384-010

ID 0.386
OD 0.744
Thickness 0.01
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3385-078

ID 0.386
OD 0.879
Thickness 0.078
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3386-057

ID 0.386
OD 1.313
Thickness 0.057
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3387-005

ID 0.387
OD 0.56
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3388-063

ID 0.387
OD 0.625
Thickness 0.063
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3389-037

ID 0.387
OD 0.749
Thickness 0.037
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-339-058

ID 0.124
OD 0.664
Thickness 0.058
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3390-036

ID 0.388
OD 0.55
Thickness 0.036
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3391-060

ID 0.388
OD 0.562
Thickness 0.06
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3392-059

ID 0.388
OD 0.626
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3393-048

ID 0.388
OD 0.688
Thickness 0.048
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3394-093

ID 0.388
OD 0.751
Thickness 0.093
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3395-031

ID 0.389
OD 0.561
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3396-062

ID 0.389
OD 0.592
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3397-031

ID 0.389
OD 0.596
Thickness 0.031
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3398-005

ID 0.389
OD 0.626
Thickness 0.005
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3399-008

ID 0.389
OD 0.673
Thickness 0.008
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-34-025

ID 0.066
OD 0.249
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-340-030

ID 0.124
OD 0.689
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3400-061

ID 0.389
OD 0.735
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3401-095

ID 0.389
OD 0.75
Thickness 0.095
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3402-076

ID 0.389
OD 0.787
Thickness 0.076
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3403-126

ID 0.389
OD 0.822
Thickness 0.126
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3404-047

ID 0.389
OD 0.875
Thickness 0.047
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3405-125

ID 0.389
OD 0.935
Thickness 0.125
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3406-120

ID 0.389
OD 1.0
Thickness 0.12
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3407-019

ID 0.39
OD 0.498
Thickness 0.019
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3407-025

ID 0.39
OD 0.498
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3408-059

ID 0.39
OD 0.52
Thickness 0.059
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3409-016

ID 0.39
OD 0.55
Thickness 0.016
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-341-030

ID 0.124
OD 0.966
Thickness 0.03
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3410-006

ID 0.39
OD 0.559
Thickness 0.006
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3411-033

ID 0.39
OD 0.625
Thickness 0.033
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3412-122

ID 0.39
OD 0.63
Thickness 0.122
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3413-086

ID 0.39
OD 0.665
Thickness 0.086
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3414-025

ID 0.39
OD 0.77
Thickness 0.025
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3415-062

ID 0.39
OD 0.873
Thickness 0.062
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3416-013

ID 0.39
OD 0.876
Thickness 0.013
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3417-123

ID 0.39
OD 0.935
Thickness 0.123
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3418-061

ID 0.39
OD 1.31
Thickness 0.061
Material Steel Low Carbon
ID TOL +-.005
OD TOL +-.005
Quantity

650-3419-040

ID 0.391
OD 0.517
Thickness 0.04
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.