Key Specifications / Parameters Parameter Description / Value Part Number 16A5484X012 Product Type Retaining Ring Intended Use For use in the trim assembly of Fischer high‑pressure (HP) valves, as the ring that retains internal trim components (soft‑seat rings, backup rings etc) Material Likely stainless steel or alloy suitable for high‑pressure service (specific alloy not listed) Application Note Identified in Fischer HP/HPAT trim parts lists as “Key 10 – Retaining Ring” for valve sizes 2″‑6″. Status / Availability Available as a spare part; found on aftermarket / independent suppliers.
