015338 – Gravely External Retaining Ring RG-RTNG-EXT .5 (Genuine OEM Part) The 015338 is a genuine OEM external retaining ring, identified as RG-RTNG-EXT .5, designed to securely retain components on shafts in Gravely lawn and garden equipment. This retaining ring provides reliable holding force to prevent axial movement of parts while allowing proper rotation and alignment within assemblies. This part has been superseded by part number 05711900, which is the direct OEM replacement and fully interchangeable with the original 015338 retaining ring. Manufactured to OEM specifications from hardened spring steel, this external snap ring is built to withstand vibration, load, and repeated service conditions common in outdoor power equipment. Key Details: Original Part Number: 015338 Superseded By: 05711900 Brand: Gravely Part Type: External Retaining Ring Alternate Description: RG-RTNG-EXT Size: 0.50″ Material: Hardened spring steel Function: Retains components on external shaft grooves OEM Status: Genuine OEM replacement part Installation: External snap-ring fit The Gravely 015338 / 05711900 external retaining ring is a critical hardware component for maintaining proper shaft retention and equipment reliability. Always verify correct fitment using the equipment’s illustrated parts diagram and shaft size specifications before installation.