Home | Metric Brass Washers - DIN & ISO Standard Sizes

Metric Brass Washers - DIN & ISO Standard Sizes

Metric brass washers provide excellent corrosion resistance and conductivity in metric fastener assemblies for plumbing, marine, electrical, and precision instrument applications. Superior Washer & Gasket Corp manufactures metric brass washers to DIN and ISO standards, with custom metric sizes available for non-standard applications.

Our ISO 9001:2015 certified quality management system ensures every metric washer we produce meets dimensional and material specifications. We stock a broad range of metric brass washers and can quickly manufacture custom sizes from our extensive brass inventory-all made in the U.S.A.

  • Metric brass washers in DIN and ISO standard sizes
  • Excellent corrosion resistance and conductivity
  • Custom metric sizes produced to specification
  • ISO 9001:2015 certified quality control
  • Made in the U.S.A.

Showing 351–400 of 1,055 products

SKU ID (MM) OD (MM) Thickness (MM) Material ID MM TOL OD MM TOL Quantity

975-1427

ID (MM) 4.597
OD (MM) 28.575
Thickness (MM) 1.651
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1428

ID (MM) 4.623
OD (MM) 10.973
Thickness (MM) 0.61
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1429

ID (MM) 4.674
OD (MM) 12.624
Thickness (MM) 3.2
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1430

ID (MM) 4.75
OD (MM) 7.925
Thickness (MM) 1.549
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1431

ID (MM) 4.75
OD (MM) 11.024
Thickness (MM) 0.381
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1432

ID (MM) 4.75
OD (MM) 15.773
Thickness (MM) 0.254
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1433

ID (MM) 4.775
OD (MM) 6.172
Thickness (MM) 0.305
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1434

ID (MM) 4.775
OD (MM) 6.807
Thickness (MM) 0.432
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1435

ID (MM) 4.801
OD (MM) 7.772
Thickness (MM) 0.229
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1436

ID (MM) 4.801
OD (MM) 7.95
Thickness (MM) 0.127
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1437

ID (MM) 4.801
OD (MM) 9.423
Thickness (MM) 0.025
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1438

ID (MM) 4.801
OD (MM) 9.576
Thickness (MM) 1.6
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1439

ID (MM) 4.801
OD (MM) 12.7
Thickness (MM) 0.127
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1440

ID (MM) 4.801
OD (MM) 12.7
Thickness (MM) 1.27
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1441

ID (MM) 4.801
OD (MM) 18.161
Thickness (MM) 1.575
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1442

ID (MM) 4.801
OD (MM) 18.999
Thickness (MM) 1.27
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1443

ID (MM) 4.801
OD (MM) 25.425
Thickness (MM) 1.499
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1444

ID (MM) 4.826
OD (MM) 6.629
Thickness (MM) 0.254
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1445

ID (MM) 4.826
OD (MM) 8.687
Thickness (MM) 1.6
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1446

ID (MM) 4.826
OD (MM) 9.449
Thickness (MM) 0.406
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1447

ID (MM) 4.826
OD (MM) 11.151
Thickness (MM) 0.127
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1448

ID (MM) 4.826
OD (MM) 12.649
Thickness (MM) 0.762
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1449

ID (MM) 4.826
OD (MM) 15.85
Thickness (MM) 0.813
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1450

ID (MM) 4.826
OD (MM) 19.456
Thickness (MM) 0.254
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1451

ID (MM) 4.826
OD (MM) 22.225
Thickness (MM) 0.813
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1452

ID (MM) 4.851
OD (MM) 6.248
Thickness (MM) 0.127
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1453

ID (MM) 4.851
OD (MM) 6.35
Thickness (MM) 0.254
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1454

ID (MM) 4.851
OD (MM) 7.087
Thickness (MM) 0.432
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1455

ID (MM) 4.851
OD (MM) 9.119
Thickness (MM) 0.635
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1456

ID (MM) 4.851
OD (MM) 9.449
Thickness (MM) 1.575
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1457

ID (MM) 4.851
OD (MM) 9.525
Thickness (MM) 0.635
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1458

ID (MM) 4.851
OD (MM) 13.005
Thickness (MM) 0.381
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1459

ID (MM) 4.851
OD (MM) 14.275
Thickness (MM) 0.762
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1460

ID (MM) 4.851
OD (MM) 18.263
Thickness (MM) 1.575
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1461

ID (MM) 4.851
OD (MM) 19.05
Thickness (MM) 0.508
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1462

ID (MM) 4.877
OD (MM) 9.5
Thickness (MM) 0.203
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1463

ID (MM) 4.877
OD (MM) 12.725
Thickness (MM) 0.762
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1464

ID (MM) 4.902
OD (MM) 8.484
Thickness (MM) 0.381
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1465

ID (MM) 4.902
OD (MM) 8.712
Thickness (MM) 0.076
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1466

ID (MM) 4.902
OD (MM) 10.312
Thickness (MM) 1.6
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1467

ID (MM) 4.902
OD (MM) 10.973
Thickness (MM) 0.254
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1468

ID (MM) 4.902
OD (MM) 12.548
Thickness (MM) 0.914
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1469

ID (MM) 4.902
OD (MM) 17.399
Thickness (MM) 0.203
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1470

ID (MM) 4.928
OD (MM) 7.468
Thickness (MM) 0.762
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1471

ID (MM) 4.928
OD (MM) 8.382
Thickness (MM) 0.838
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1472

ID (MM) 4.953
OD (MM) 7.874
Thickness (MM) 0.508
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1473

ID (MM) 4.953
OD (MM) 11.125
Thickness (MM) 1.041
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1474

ID (MM) 4.978
OD (MM) 9.703
Thickness (MM) 1.016
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1475

ID (MM) 5.004
OD (MM) 7.671
Thickness (MM) 0.508
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

975-1476

ID (MM) 5.004
OD (MM) 11.125
Thickness (MM) 0.635
Material Brass
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

Metric Brass Washer Frequently Asked Questions

Below are answers to some of the most common questions about metric brass washers.

What are metric brass washers?
Metric brass washers are flat washers dimensioned in millimeters for use with metric fasteners. Superior Washer manufactures metric brass washers to DIN and ISO standard sizes as well as custom metric dimensions, providing excellent corrosion resistance, electrical conductivity, and an attractive appearance for plumbing, marine, electrical, and precision instrument applications. Our metric brass catalog covers over 1,055 configurations.

What DIN and ISO standards do your metric brass washers conform to?
Superior Washer metric brass washers are produced to DIN 125, DIN 9021, and ISO 7089/7090 standard dimensions where applicable, as well as custom metric sizes not covered by a specific standard. All washers carry a dimensional tolerance of +/- 0.127 mm on both ID and OD.

What size range are your metric brass washers available in?
Our metric brass washers cover ID sizes from approximately 0.91 mm through 19.15 mm and OD sizes from approximately 3.15 mm through 50.8 mm, across a wide range of thicknesses from 0.025 mm through 3.96 mm. This extensive range supports miniature, precision, and industrial metric fastener applications.

What brass alloy do you use for metric washers?
Metric brass washers are manufactured from Brass Alloy 260 (cartridge brass, 70% copper / 30% zinc), which offers the best balance of corrosion resistance, formability, conductivity, and strength for washer applications.

Can you produce custom metric brass washers?
Yes. We manufacture custom metric brass washers to your exact millimeter OD, ID, and thickness specifications. Contact us via the Quick Quote form or call NY (631) 273-8282 or SC (803) 366-3250.

Are your metric brass washers made in the USA?
Yes. All metric brass washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System. Material certifications are available upon request.

Need imperial sizing instead? We also stock brass and other materials in SAE and USS dimensions. Browse the full flat washers catalog to compare all sizing and material options.