O-RING (Yale YT18954)

YT18954: A damaged retaining ring can allow assembled components to separate under load, leading to mechanical failure. This aftermarket replacement part references Yale as the OE maker and cross-references part number YT18954. The O-ring functions as a sealing element that prevents fluid or gas leakage between mating surfaces. A plain mechanical function is to compress into a groove to block passageways. A concrete generic failure consequence is that a hardened or cracked O-ring will leak, causing loss of pressure or contamination. Verify the serial number or application, then call (562) 693-7748. Keeping a retaining ring in sound condition helps maintain secure assembly of shafts and housings.

Part number variants: YT18954, yt18954