The SA633958-5 seal is a small compression sealing component used in Continental-compatible aircraft piston engine assemblies. It is designed to seal interfaces between mating engine parts where fluid (oil or fuel vapor depending on location) or pressure leakage must be prevented.

The dimensions .34” inner diameter × .29” thickness indicate a compact sealing ring used in tight-clearance engine accessory or housing applications.

Key features include:

PMA compression seal
Dimensions: 0.34 in ID × 0.29 in thickness
Oil- and fuel-resistant elastomer or composite material (variant dependent)
Provides sealing between mating engine components
Prevents leakage under pressure and vibration
Designed for high-temperature aviation engine environments
Precision-molded for correct fitment and compression load
Compatible with Continental piston engine configurations (model-dependent IPC use)
Used in accessory housing / engine system interfaces
Standard consumable sealing part in engine maintenance and overhaul