COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. These 503 seals have a .630" outer diameter and fit applications with 11/32" valves and .530" OD valve guides.
|Seal Outer Diameter||0.63|
|Valve Seal Type||Positive Stop PTFE|
|Valve Guide Outer Diameter||0.53|
|Valve Stem Outer Diameter||11/32|
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