The Valve,butterfly, cataloged under National Stock Number 4820-01-354-2574, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-354-2574
Item Name
Valve,butterfly
FSC / FSG
4820 / 48 — Valves, Nonpowered
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
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
4820-01-356-4538804-1749102C R4 W/WORM GEARPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Naval Ship Systems Command
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
804-1749102C R12 W/WORM GEAR
3/2Design control — primary reference
U.S. Government activity
804-1749102C
5/1Secondary reference
U.S. Government activity
Related Parts
4820-01-354-2575POSSIBLE MATCH
VALVE,BUTTERFLY
804-1749102C R16 W/ WORM GEAR
4810-01-354-2582POSSIBLE MATCH
VALVE,BUTTERFLY
804-1749102C R24 W/440V OPER
4820-01-354-4726POSSIBLE MATCH
VALVE,BUTTERFLY
804-1749102C R5 W/HANDLE
4810-01-356-1297POSSIBLE MATCH
VALVE,BUTTERFLY
804-1749102C R10 W/115V OPER
4820-01-356-4538POSSIBLE MATCH
VALVE,BUTTERFLY
804-1749102C R4 W/WORM GEAR
Frequently Asked Questions
What is NSN 4820-01-354-2574?
NSN 4820-01-354-2574 is a Valve,butterfly, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-354-2574?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-354-2575, 4810-01-354-2582, 4820-01-354-4726. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-354-2574?
Key specifications for 4820-01-354-2574: Special Features: WITH WORM GEAR OPERATOR. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-354-2574 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.