VARIAN F61X Feed-Through Cover Modules: E17113174 263958-001 0100-20318 0010-21699

Technical Dossier

Product Details And Specifications

VARIAN F61X Series: Comprehensive Feed-Through Cover Range and Technical Overview

The VARIAN F61X Feed-Through Cover series is a precision mechanical and electrical interface component deployed across high-demand industrial and medical-grade environments, including semiconductor fabrication equipment, radiation therapy systems, and vacuum-based process machinery. VARIAN Medical Systems and VARIAN Semiconductor Equipment Associates (VSEA) have historically supplied these components as integral parts of ion implantation systems, linear accelerators (LINACs), and associated subsystems. The F61X cover assemblies serve as protective and structural feed-through interfaces, maintaining vacuum integrity and electrical isolation in environments where contamination control and mechanical precision are non-negotiable. Global installed base spans facilities in North America, Europe, South Korea, Japan, Taiwan, and China, with long operational lifecycles of 10–25 years creating sustained demand for replacement and maintenance parts.

The Evolution of F61X Architecture

The F61X feed-through cover design evolved alongside VARIAN's broader platform transitions in ion implantation and beam-line equipment. Early-generation covers were machined aluminum assemblies with basic O-ring sealing, designed for low-cycle maintenance intervals. Mid-generation revisions introduced composite materials and precision-tolerance flanges to accommodate higher vacuum levels (below 1×10⁻⁷ Torr) and increased thermal cycling demands. The part numbering convention used by VARIAN — structured as a primary assembly number (e.g., E17113174), followed by configuration sub-codes (263958-001), and revision/build identifiers (0100-20318, 0010-21699) — reflects a modular engineering approach where sub-assemblies can be independently sourced and replaced without full system teardown. Compatibility across F61X variants is configuration-dependent; cross-referencing the full part string is mandatory before substitution. As VARIAN's product lines have matured and some equipment platforms have reached end-of-manufacture status, sourcing these covers through authorized aftermarket channels has become the primary procurement path for maintenance teams.

F61X Full Catalog & Functionalities (SKU List)

The following represents known and commonly referenced part numbers within the VARIAN F61X feed-through cover and associated assembly range. Each entry reflects a distinct configuration, revision, or sub-assembly designation:

• E17113174 263958-001 0100-20318 0010-21699: F61X primary feed-through cover assembly, standard configuration, vacuum-rated interface
• 263958-001: Cover sub-assembly, primary flange configuration, aluminum body
• 263958-002: Cover sub-assembly, alternate flange configuration, revised sealing geometry
• 0100-20318: Build revision identifier, mid-generation mechanical tolerance update
• 0010-21699: Configuration suffix, electrical isolation variant
• E17113174-001: Top-level assembly drawing reference, F61X cover with standard O-ring kit
• E17113174-002: Top-level assembly, high-temperature O-ring variant for elevated process environments
• 263958-003: Cover plate, reduced-profile variant for space-constrained beam-line installations
• 263958-004: Cover assembly with integrated grounding strap provision
• 0100-20319: Revision update, surface finish specification change for corrosion resistance
• 0100-20320: Revision update, fastener pattern modification for torque specification compliance
• 0010-21700: Electrical isolation variant, upgraded dielectric material
• 0010-21701: Electrical isolation variant, dual-seal configuration for redundant vacuum integrity
• E17113175: Adjacent assembly, F61X cover with extended flange for non-standard port geometry
• E17113176: Adjacent assembly, F61X cover with viewport provision for in-situ inspection
• 263959-001: Companion gasket kit, compatible with F61X cover series, full O-ring set
• 263960-001: Fastener hardware kit, stainless steel, F61X cover mounting specification

Sourcing Hard-to-Find & Obsolete F61X Parts

VARIAN's F61X feed-through cover components are no longer in active production through OEM channels for many legacy equipment platforms. DriveKNMS maintains a dedicated inventory of new-surplus, refurbished, and tested F61X assemblies sourced through authorized dismantlement programs and long-term storage facilities. For end-users operating VARIAN ion implanters, LINACs, or vacuum process tools beyond their original support window, DriveKNMS provides lifecycle extension services including: direct part number cross-referencing, condition-graded inventory (new surplus, refurbished-to-spec, and as-removed), and expedited shipping to minimize equipment downtime. All obsolete part requests are processed against a verified cross-reference database to confirm dimensional and functional compatibility before dispatch.

Quality Control for the F61X Range

Feed-through cover assemblies in the F61X series require verification of vacuum sealing integrity, dimensional conformance, and surface condition prior to installation. DriveKNMS applies the following inspection protocol to all F61X units processed through its facility: dimensional measurement of flange mating surfaces against OEM drawing tolerances; O-ring groove inspection for wear, deformation, or contamination; helium leak testing on refurbished assemblies to confirm vacuum integrity at operating pressure specifications; visual and tactile inspection of all sealing surfaces for scratches, pitting, or corrosion that would compromise seal performance; and electrical isolation verification on variants with dielectric provisions. Units that do not meet OEM-equivalent acceptance criteria are quarantined and not offered for sale. Each shipped unit is accompanied by a condition report and, where applicable, test data.