The 501867 locking tab washer is an OEM Continental aircraft engine hardware component used to mechanically secure fasteners in critical engine assemblies. It is a flat washer with bendable tabs that are folded against a bolt or nut after installation to prevent loosening under vibration and thermal cycling.

It is commonly used in Continental piston engine assemblies where positive mechanical locking is required in addition to torque retention.

Key features include:

OEM Continental locking tab washer
Steel construction with bendable locking tabs
Provides positive mechanical fastener locking
Prevents loosening under vibration and cyclic engine loads
Designed for high-temperature aviation engine environments
Tabs are bent after torque installation for secure retention
Used in accessory, case, and internal engine assemblies (application dependent IPC)
Corrosion-resistant aviation-grade material
Compatible with Continental piston engine configurations
Used in certified engine maintenance, repair, and overhaul procedures