NSN 4820-01-354-2563 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-354-2563. Manufacturer of record part number: 2508020.
Also searched as4820-01-354-2563 ·
4820013542563 ·
NIIN 013542563 ·
01-354-2563 ·
FSC 4820 Valves, Nonpowered · CAGE 1R1C4 · 2508020 · 804-1749102C R8 W/WORM GEAR · GENERIC HEAD,DO NOT ORDER · 804-1749102C
Manufacturer of record: Thomas Leaman Dba Northwest Sales
Identification
NSN: 4820-01-354-2563
NIIN: 013542563
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2508020
Manufacturer: Thomas Leaman Dba Northwest Sales
General Description
The Valve,butterfly, cataloged under National Stock Number 4820-01-354-2563, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thomas Leaman Dba Northwest Sales. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-354-2563
Primary Part Number
2508020
Item Name
Valve,butterfly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Thomas Leaman Dba Northwest Sales
Status
ACTIVE
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4810-01-354-2564804-1749102C R8 W/115V OPERPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-2565804-1749102C R3 W/WORM GEARPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-2566804-1749102C R3 W/HANDLEPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-2567804-1749102C R3.5 W/WORM GEARPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-2574804-1749102C R12 W/WORM GEARPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-2575804-1749102C R16 W/ WORM GEARPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4810-01-354-2582804-1749102C R24 W/440V OPERPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4820-01-354-4726804-1749102C R5 W/HANDLEPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
4810-01-356-1297804-1749102C R10 W/115V OPERPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
NSN 4820-01-354-2563 is a Valve,butterfly, manufactured by Thomas Leaman Dba Northwest Sales, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-354-2563?
NSN 4820-01-354-2563 has 1 manufacturer part number on file: 2508020 (Thomas Leaman Dba Northwest Sales).
What NSN replaces 4820-01-354-2563?
9 possible matches (shared part number, not a government interchangeability claim): 4810-01-354-2564, 4820-01-354-2565, 4820-01-354-2566. Verify interchangeability with system specifications before substitution.
What are the specifications of 2508020?
Key specifications for 2508020: Special Features: WITH WORM GEAR OPERATOR. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-354-2563 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.