NSN 4810-01-423-9428 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-423-9428. Manufacturer of record part number: 366-25A.
Manufacturer of record: Magnatrol Valve Corp Div Clark-Cooper
Identification
NSN: 4810-01-423-9428
NIIN: 014239428
FSC: 4810 — Valves, Powered
FSG: 48 — Valves
Primary part number: 366-25A
Manufacturer: Magnatrol Valve Corp Div Clark-Cooper
General Description
The Retainer,disk,valve, cataloged under National Stock Number 4810-01-423-9428, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Magnatrol Valve Corp Div Clark-Cooper. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4810-01-423-9428
Primary Part Number
366-25A
Item Name
Retainer,disk,valve
FSC / FSG
4810 / 48 — Valves, Powered
Manufacturer
Magnatrol Valve Corp Div Clark-Cooper
Status
ACTIVE
Valve Model Number for Which Designed
EV-1920
Valve Size for Which Designed
1.500 INCHES IN
Valve Design Control Activity
14561
Material
COPPER ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4810-01-423-9429366-24APOSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Magnatrol Valve Corp Div Clark-Cooper
4810-01-424-0880365-62APOSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Magnatrol Valve Corp Div Clark-Cooper
4810-01-424-088336506000V19POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Magnatrol Valve Corp Div Clark-Cooper
4810-01-424-0886366-09APOSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Magnatrol Valve Corp Div Clark-Cooper
4810-01-424-2201EV1920POSSIBLE MATCH
VALVE,SOLENOID
Possible match (shared part number)Magnatrol Valve Corp Div Clark-Cooper
NSN 4810-01-423-9428 is a Retainer,disk,valve, manufactured by Magnatrol Valve Corp Div Clark-Cooper, classified under FSC 4810, Valves, Powered. Status: active.
What part numbers are listed for NSN 4810-01-423-9428?
NSN 4810-01-423-9428 has 1 manufacturer part number on file: 366-25A (Magnatrol Valve Corp Div Clark-Cooper).
What NSN replaces 4810-01-423-9428?
5 possible matches (shared part number, not a government interchangeability claim): 4810-01-423-9429, 4810-01-424-0880, 4810-01-424-0883. Verify interchangeability with system specifications before substitution.
What are the specifications of 366-25A?
Key specifications for 366-25A: Valve Model Number for Which Designed: EV-1920; Valve Size for Which Designed: 1.500 INCHES IN; Special Features: LOWER RETAINER; Valve Design Control Activity: 14561. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4810-01-423-9428 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.