PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N66443Stem,fluid Valve

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-240-8529 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-240-8529 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-240-8529. Primary manufacturer part number: N66443.
Features
  • Stem,fluid Valve — FSC 4820
  • Valve Model Number for Which Designed: EZHOMS-1
  • Material: STEEL
  • Features Provided: UPPER STEM
  • 3 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-240-8529, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-240-8529
Primary Part NumberN66443
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Valve Model Number for Which DesignedEZHOMS-1
MaterialSTEEL
Features ProvidedUPPER STEM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4810-01-189-329266443 INTERCHANGEABLE
Cap,valve
Setra Systems, Inc. Dba Gems Sensors
5120-01-601-5187 INTERCHANGEABLE
Screwdriver,flat Tip
4720-01-719-310766443 INTERCHANGEABLE
Hose Assembly,nonmetallic
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
66443 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
N66443 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
A66443 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4810-01-189-3292INTERCHANGEABLE
CAP,VALVE
66443
5120-01-601-5187INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
4720-01-719-3107INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
66443

Frequently Asked Questions

What is NSN 4820-01-240-8529?

NSN 4820-01-240-8529 is a Stem,fluid Valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-240-8529?

NSN 4820-01-240-8529 has 3 cross-referenced part numbers: 66443 (Leslie Controls, Inc. Dba Leslie Controls Inc), N66443 (Leslie Controls, Inc. Dba Leslie Controls Inc), A66443 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-240-8529?

There are 3 known substitutes for 4820-01-240-8529: 4810-01-189-3292, 5120-01-601-5187, 4720-01-719-3107. Verify interchangeability with system specifications before substitution.

What are the specifications of N66443?

Key specifications for N66443: Valve Model Number for Which Designed: EZHOMS-1; Material: STEEL; Features Provided: UPPER STEM. 3 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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