Swagelok SS-3AS-3NKR95-P Valve Stem

Swagelok SS-3AS-3NKR95-P Valve Stem is a replacement stem component for Swagelok needle valves in the SS-series family, designed to actuate the valve plug and enable precise flow control when paired with the corresponding bonnet and body assembly. The component is part of Swagelok’s severe-service needle valve ecosystem, which includes N-series valves and related stems that support demanding applications where reliable manual regulation is required. In Swagelok documentation, the -P suffix is a stem-packing material designator, with UHMWPE packing indicated by the designator -P in related ordering schemes, and other material options like PEEK or Grafoil also appear in catalog references. This means the SS-3AS-3NKR95-P designation encodes a specific combination of stem form and packing configuration used within Swagelok needle valve assemblies. Swagelok catalogs describe various stem variants, including regulating and straight-pattern stems for N-series valves, underscoring that stems are a modular part chosen to fit the valve body, bonnet style, and service requirements. For buyers, the key considerations are ensuring compatibility with the matching Swagelok SS-series valve body and confirming appropriate packing designator to meet material compatibility needs within the intended application. The part number SS-3AS-3NKR95-P identifies a very specific stem configuration within Swagelok’s needle valve family, intended to work with compatible valve components as part of a complete Swagelok assembly.