PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-559Valve Assembly,manifold

Metso Minerals Industries, Inc. Dba Bulk Material Handling · NSN 4820-01-235-4406 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-235-4406 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-235-4406. Primary manufacturer part number: S-559.
Features
  • Valve Assembly,manifold — FSC 4820
  • Reference Number Differentiating Characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
  • 2 verified cross-references
  • Primary manufacturer: Metso Minerals Industries, Inc. Dba Bulk Material Handling
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Assembly,manifold, cataloged under National Stock Number 4820-01-235-4406, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Metso Minerals Industries, Inc. Dba Bulk Material Handling. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-235-4406
Primary Part NumberS-559
Item NameValve Assembly,manifold
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMetso Minerals Industries, Inc. Dba Bulk Material Handling
StatusACTIVE
Reference Number Differentiating CharacteristicsMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-00-052-407179853-02 INTERCHANGEABLE
Repair Kit,valve
Lawler Manufacturing Company, Inc.
Cross-Reference Index
Part NumberManufacturer
S-559 Metso Minerals Industries, Inc. Dba Bulk Material Handling (USA)
S-559VM Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-00-052-4071INTERCHANGEABLE
REPAIR KIT,VALVE
79853-02

Frequently Asked Questions

What is NSN 4820-01-235-4406?

NSN 4820-01-235-4406 is a Valve Assembly,manifold, manufactured by Metso Minerals Industries, Inc. Dba Bulk Material Handling, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-235-4406?

NSN 4820-01-235-4406 has 2 cross-referenced part numbers: S-559 (Metso Minerals Industries, Inc. Dba Bulk Material Handling), S-559VM (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4820-01-235-4406?

There is 1 known substitute for 4820-01-235-4406: 4820-00-052-4071. Verify interchangeability with system specifications before substitution.

What are the specifications of S-559?

Key specifications for S-559: Reference Number Differentiating Characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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