Copper Washer

Copper Washer

Copper Sealing Washers

High-quality copper sealing washers designed to provide a tight seal for high-pressure applications. Ideal for hydraulic fittings, brake systems, and automotive uses where durability and heat resistance are essential.

These Copper Sealing Washers are made from solid copper and offer excellent conductivity, corrosion resistance, and mechanical strength. Designed for high-temperature and high-vibration environments, they deform under pressure to ensure a leak-proof seal. Commonly used in automotive, aerospace, and industrial equipment applications, these washers are a reliable choice where performance and longevity matter.

Part No. I.D. (MM) O.D. (MM)
37-4310 8 12
37-4311 8 14
37-4312 10 14
37-4313 10 16
37-4314 12 16
37-4315 12 18
37-4316 14 18
37-4317 14 20
37-4318 14 22
37-4319 16 20
37-4320 16 22
37-4321 18 24
37-4322 20 26
37-4323 22 29
37-4324 24 30
37-4325 26 32
37-4326 28 34
Shipping & Stocking Made Simple

At GNS Industrial Supply, we don’t just deliver products—we deliver peace of mind. Unlike traditional suppliers who ship and leave the rest to you, we take a hands-on approach to your inventory management. Our team visits your location, audits your existing stock, identifies what you need, and handles the reordering process for you. We then deliver directly to your facility and restock your supply room according to your preferred system—ensuring your operation runs smoothly without overstock or downtime. It’s a smarter, more personalized way to manage industrial supplies—built for teams who don’t have time to run out of what matters.