670 Series Slim-Line Master Cylinder Home > Master Cylinders >Push-Type Master Cylinders >670 Series Master Cylinders
  • Our most popular selling Master Cylinder.
  • Simple design assures long trouble free service.
  • Direct replacement for Cleveland Model 10-54
    & Gerdes Model A-110
• Outlet Ports: 1/8" NPT
• Max Pressure = 1,200 psi
• For use with MIL-H-5606 Fluid
Click on Part Number for
Dimensional Data		 Our standard master cylinder has a piston bore of 5/8" and is recommended for most aircraft. For aircraft with oversized tires, poor brake pedal geometry, etc. you may wish to use a master cylinder with a piston diameter of 9/16" which produces 19% more brake fluid pressure or 1/2" which produces 36% more pressure.

Part Number
670-48 shown

Piston Stroke = 1.4"

Displacement of master cylinders with a piston bore of 5/8" is 0.429 cu-in.

Displacement of master cylinders with a piston bore of 9/16" is 0.348 cu-in.

Displacement of master cylinders with a piston bore of 1/2" is 0.275 cu-in.
Part No.
5/8" Bore		 Part No.
9/16" Bore		 Part No.
1/2" Bore		 Pin-to-Pin
Length		 Upper
Attachment		 Lower
Attachment		 Weight Price
670-1 670-901 670-501 7.5" Clevis Inline 5.9 oz. $399.00
670-2 670-902 670-502 8.0" Clevis Inline 6.2 oz. $399.00
670-3 670-903 670-503 7.5" Clevis 90° Offset 5.9 oz. $399.00
670-4 670-904 670-504 8.0" Clevis 90° Offset 6.2 oz. $399.00
670-48 670-948 670-548 7.88" Clevis Inline 5.9 oz. $399.00
670-6 670-906 670-506 7.88" Clevis 90° Offset 5.9 oz. $399.00
670-7 670-907 670-507 7.25" Clevis Inline 5.9 oz. $399.00
670-8 670-908 670-508 7.25" Clevis 90° Offset 5.9 oz. $399.00
670-13 670-913 670-513 8.0" 3/8" Eye Bolt 90° Offset 6.2 oz. $399.00
670-14 670-914 670-514 8.0" 3/8" Eye Bolt Inline 6.2 oz. $399.00
670-15 670-915 670-515 8.0" 1/2" Eye Bolt 90° Offset 6.2 oz. $399.00
670-16 670-916 670-516 7.5" 1/2" Eye Bolt 90° Offset 5.9 oz. $399.00
670-17 670-917 670-517 8.0" 1/2" Eye Bolt Inline 6.2 oz. $399.00
670-18 670-918 670-518 7.5" 1/2" Eye Bolt Inline 5.9 oz. $399.00
670-19 670-919 670-519 7.5" 3/8" Eye Bolt 90° Offset 5.9 oz. $399.00
670-20 670-920 670-520 7.5" 3/8" Eye Bolt Inline 5.9 oz. $399.00
670-45 670-945 670-545 7.25" Clevis 90° Offset 6.2 oz. $399.00