PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ES8594-203NSleeve,valve

Drs Sustainment Systems, Inc. · NSN 4820-01-150-3686 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-150-3686 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-150-3686. Primary manufacturer part number: ES8594-203N.
Features
  • Sleeve,valve — FSC 4820
  • General Characteristics Item Description: CORROSION RESISTING STEEL
  • 7 verified cross-references
  • Primary manufacturer: Drs Sustainment Systems, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Sleeve,valve, cataloged under National Stock Number 4820-01-150-3686, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Drs Sustainment Systems, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-150-3686
Primary Part NumberES8594-203N
Item NameSleeve,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDrs Sustainment Systems, Inc.
StatusACTIVE
General Characteristics Item DescriptionCORROSION RESISTING STEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4470-00-472-2605 INTERCHANGEABLE
Back Ferrule
4730-00-772-16384FR316 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
4730-01-017-1470 INTERCHANGEABLE
Sleeve,flared,tube Fitting
5961-01-043-7932352-0786-010 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4730-01-052-0204SS-404-1 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
Swagelok Co
4730-01-112-1288 INTERCHANGEABLE
Ferrule,compression,tube Fitting
5961-01-253-6520932400-0001 INTERCHANGEABLE
Semiconductor Device,diode
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
ES8594-203N Drs Sustainment Systems, Inc. (USA)
SS-404-1 Whitey Co (USA)
SS-404-1 South London Valve & Fitting Company Ltd T/a Swagelok London (GBR)
SS-404-1 Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging (USA)
5753738-5 Naval Sea Systems Command (USA)
ES8594-203N Drs Sustainment Systems Inc (USA)
CV0096-109 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
Related Parts
4470-00-472-2605INTERCHANGEABLE
BACK FERRULE
4730-00-772-1638INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
4FR316
4730-01-017-1470INTERCHANGEABLE
SLEEVE,FLARED,TUBE FITTING
5961-01-043-7932INTERCHANGEABLE
TRANSISTOR
352-0786-010
4730-01-052-0204INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
SS-404-1
4730-01-112-1288INTERCHANGEABLE
FERRULE,COMPRESSION,TUBE FITTING
5961-01-253-6520INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
932400-0001

Frequently Asked Questions

What is NSN 4820-01-150-3686?

NSN 4820-01-150-3686 is a Sleeve,valve, manufactured by Drs Sustainment Systems, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-150-3686?

NSN 4820-01-150-3686 has 7 cross-referenced part numbers: ES8594-203N (Drs Sustainment Systems, Inc.), SS-404-1 (Whitey Co), SS-404-1 (South London Valve & Fitting Company Ltd T/a Swagelok London), SS-404-1 (Swagelok Co Dba Use CAGE Code 3t9t9 for Cataloging), 5753738-5 (Naval Sea Systems Command) and 2 more.

What NSN replaces 4820-01-150-3686?

There are 7 known substitutes for 4820-01-150-3686: 4470-00-472-2605, 4730-00-772-1638, 4730-01-017-1470 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ES8594-203N?

Key specifications for ES8594-203N: General Characteristics Item Description: CORROSION RESISTING STEEL. 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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