The SA501867 washer is an aviation-grade hardware component designed for use in certified aircraft engine and airframe assemblies. It is used to distribute load, protect mating surfaces, maintain proper spacing, and improve fastening security in high-vibration operating environments commonly found in piston aircraft engines.

This precision-manufactured washer is compatible with Continental-style engine applications and may be installed with bolts, nuts, studs, or other threaded fastening hardware during engine assembly, maintenance, or overhaul operations.

Key features include:

PMA aircraft engine hardware washer
Precision-stamped aviation-grade metal construction
Designed for load distribution and surface protection
Helps maintain proper fastener alignment and torque retention
Used in high vibration and cyclic load engine environments
Compatible with Continental piston engine applications (model/IPC dependent)
Suitable for engine case, accessory, bracket, or structural installations
Corrosion-resistant aviation hardware finish (variant dependent)
Works with standard aircraft bolts, nuts, and studs
Approved for certified aircraft maintenance and overhaul procedures