Seastrom Manufacturing

Prepackaged Washers

Stainless Steel Round Flat Washer: A370

Aluminum Flat Round Washer: A379

Brass Round Flat Washer: A378

Copper Round Flat Washer: A477

Fiberglass Round Flat Washer: A372

Nylon Round Flat Washer: A361

Phenolic Round Flat Washer: A394

PTFE Round Flat Washer: A362

Neoprene Round Flat Washer: A385

Nylatron Round Flat Washer: A693

Polyelastomer Round Flat Washer: A392

PVC Round Flat Washer: A693

Stainless Steel Metric Round Flat Washer: A370

Lobed (Flat) Retaining Washer: A420

External Retention Washer: A639

PTFE Shoulder Washer: A365

Insulating Split Washer: A383

Metal Split Washer: A383

Double Internal Notch Washers: A870

Square Hole Washer: A579

Double External Notch Washers: A870

Double Internal Tab Washer: A599

Formed Key Washer: A380

Single External Notch Washer: A870

Stainless Internal Notch Washer: A694

Terminal Cup Washer: A376

D Shaped Washers: A466

Tab Lock Washers: A599

Metal C Washer: A383

Tab Lock Washers: A599

Single Internal Tab Washers: A599

Contact Us

Company Info

Product Directory

Purely Custom

Subsidiaries

Use of this site acknowledges agreement of our Terms and Conditions. All website design, text, graphics, and the selection and arrangement thereof, are the property of Seastrom Manufacturing Co., Inc. and are Copyright ©2026 Seastrom Manufacturing Co., Inc. All Rights Reserved. SEASTROM, SEASTROM MANUFACTURING and the Seastrom logo are trademarks owned by Seastrom Manufacturing Co., Inc.