1953-1962 Corvette C1 Master Cylinder Large Outlet Nut Washer 5450212

1953-1962 C1 Master Cylinder Large Outlet Nut Washer 5450212 - OEM Number(s) (5450212)

Seal your C1 master cylinder properly with the correct copper washer.

This original-style copper sealing washer fits the cast iron outlet nut on the front of the master cylinder. Designed for use in early Corvette brake systems, it ensures a leak-free hydraulic seal between the nut, brass block, and brake line hardware. Without this washer, proper pressure and braking performance cannot be maintained. A small but critical piece in restoring full factory braking function.

Fits the Following Corvette Models:

• 1953–1962 Corvette (C1)

Material/Finish

• Precision-stamped copper, engineered for hydraulic sealing.

Dimensions

• Outer Diameter: 13/16 in (21mm)

• Inner Diameter: 5/8 in (16mm)

• Thickness: 1/32 in (0.8mm)

Features/Benefits

• Correct copper washer for master cylinder large outlet nut.

• Ensures leak-free seal in brake hydraulic system.

• Manufactured to GM original specifications.

• Essential component in proper master cylinder assembly.

• GM reference part number: 5450212

• Sold individually, 1 required per Corvette.

Because Details Matter
The earliest Corvettes rely on precise sealing for dependable braking. This washer may seem minor, but without it, fluid escapes and performance suffers. Installing the correct copper washer keeps your master cylinder tight, your brake pressure solid, and your driving confidence intact—because details matter.

Also known under these part numbers: (For reference only)

• 5450212
• 686420322443
• LSBLB3