Key Specifications / Parameters Parameter Description / Value Part Number 10A4220X012 Product Type Retaining Ring Material 302 Stainless Steel (302 SST) (as listed in Fisher trim parts table) Intended Use Used as Key 27* “Retaining Ring for Spring‑Loaded Seal Ring” in Fisher ET/EAT valves (NPS 1‑6) Valve Size Fitment Applicable to valves sized NPS 1‑6 (as per parts list) Role To retain the spring‑loaded seal ring in place, ensuring correct seating and alignment in the valve trim Condition / Status Available as a spare part (may be legacy)

Key Specifications / Parameters Parameter Description / Value Part Number 10A4216X012 Product Type Seal Ring (radial, spring‑loaded) Material PTFE / Hastelloy C (as indicated in one listing) Applicable Size “ET 1‑1/2″” (as per one aftermarket listing) Manufacturer Fisher (Emerson brand) Intended Use Replacement seal ring for the specified valve assembly Weight Approx. 0.14 kg (0.31 lb) in one specification)

Key Specifications / Parameters Parameter Description / Value Part Number 16A5485X012 Product Type Seal Ring Applicable System Control valve trim assemblies (valves sized in the HP/HPT/HPAT series) Material Not explicitly specified in the available listing Condition / Status Discontinued by manufacturer Weight ~3.00 lbs (as per a parts listing) Intended Use Replacement sealing ring component for Fisher control valves

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.

Key Specifications / Parameters Parameter Description / Value Part Number 16A5483X012 Product Type Backup (anti-extrusion) ring Intended Application Used in the trim/seat assembly of sliding-stem control valves, specifically for valves with HPT/HPAT designs Housing/Valve Sizes Applicable to valve sizes NPS 2 to 6 (2″–6″) as listed in the parts list for HPT/HPAT trims. Material Stainless steel (per parts list entry “S31600 (316 SST)” for this part number) Role Acts as a rigid support ring beneath soft or polymer seating materials to prevent extrusion under elevated pressure / temperature service Status / Usage A component to be ordered as part of trim or overhaul kits; used for legacy or replacement service in Fisher HP/HPT valve series

Key Specifications / Parameters Parameter Value / Description Part Number 22B5998X012 Product Type Anti-extrusion (backup) ring set Intended Application Supports soft-seated or PTFE/low-chloride seats in sliding‐stem valves under elevated temperature/pressure service Material Carbon-filled PEEK (or high-performance polymer) – designed for high temperature service Valve Service Notes Extends temperature limits when used with a soft seat and anti-extrusion ring combination Typical Service Benefit Prevents extrusion of sealing material; enables use of PTFE/soft seat in more demanding conditions

Key Specifications / Parameters Parameter Description/Value Part Number 10A2643X022 Product Type Seal Ring (spring-loaded) Applicable Valve Sizes Size 8 × 6 or 12 × 6 (NPS) valves in the Fisher EWS/EWT/EWD line (spring-loaded seal ring for those sizes) Seating Type Spring‐loaded radial seal ring Material For this version, likely carbon‐filled PTFE or equivalent; for the 10A2643X022 you might see “PTFE seat with spring loading” referenced. Status Discontinued (manufacturer shows as “DISCONTINUED BY MANUFACTURER”) Weight Approximately 0.23 lbs (as listed by some surplus sellers)

Key Specifications / Parameters Parameter Value / Notes Part Number RPACKX00032 Stem Size (nominal) ¾ inch (19.1 mm) Packing Type Single PTFE / TFE V-ring packing Material PTFE (polytetrafluoroethylene) Included Components Packing set, spring, washer, packing box ring, upper wiper (and related hardware) Application Stem sealing for sliding-stem control valves Status Discontinued (no longer in current production)

Key Specifications / Parameters Parameter Value / Notes Part Number RPACKX00022 Stem Diameter ½ inch (12.7 mm) Yoke Box / Boss Diameter Approximately 2 13/16 in (71 mm) Packing Type Single PTFE (TFE) V-ring packing Assembly Type Non-live-loaded Application E-Body valve packing repair kit for ½″ stem size Material PTFE (TFE) V-Ring packing components Typical Use Valve stem sealing replacement/repair

Key Specifications / Parameters Parameter Description Product Type Packing Repair Kit Part Number RPACKX00012 Stem Size 3/8 inch (0.375 inch) Packing Type Single PTFE (TFE) V-ring packing Material Polytetrafluoroethylene (PTFE) Application Valve stem sealing for sliding-stem control valves Temperature Range Suitable for moderate-temperature and chemical service environments Chemical Resistance Excellent resistance to most process fluids Maintenance Simple replacement and installation in field conditions Kit Components PTFE V-ring packing, washers, packing box ring, follower, and wiper components