P/N: MS27641-4, KP4A

Roller Bearing

FAA-PMA eligible direct replacement for MS27641-4 / KP4A
Pre-lubricated and sealed, engineered for reliable performance in airframe control systems.

• Precision dimensions: 0.2500″ bore × 0.7500″ OD × 0.281″ inner width × 0.219″ outer width
• Double-contact PTFE seals with MIL-G-81322 grease – lifetime lubrication
• Made from E52100 chrome steel with cadmium plating for corrosion resistance
• Load capacity: 1,880 lbf radial, 900 lbf thrust – ideal for intermediate-duty use
• Designed for high-reliability use in aircraft control linkage assemblies

The MS27641-4 / KP4A roller bearing is a precision-engineered, deep-groove ball bearing tailored for airframe control applications. Designed to handle radial and thrust loads in demanding flight environments, this bearing offers a 0.2500″ bore and 0.7500″ outer diameter with inner and outer ring widths of 0.281″ and 0.219″ respectively, ensuring compatibility with standard linkage housings.

It features dual PTFE contact seals and is pre-lubricated with MIL-G-81322 aviation grease for long-lasting, maintenance-free service. The E52100 chrome steel construction is cadmium plated for corrosion protection, and the unit is rated for 1,880 lbf static radial load and 900 lbf thrust load. Supplied new and fully traceable, this bearing is an ideal FAA-PMA eligible replacement for OEM MS27641-4 components.