NSN 4820-01-458-8578 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-458-8578. Manufacturer of record part number: YCM72033.
Manufacturer of record: Leslie Controls, Inc. Dba Leslie Controls Inc
Identification
NSN: 4820-01-458-8578
NIIN: 014588578
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: YCM72033
Manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
General Description
The Valve,butterfly, cataloged under National Stock Number 4820-01-458-8578, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,butterfly
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Leslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795)
Technical Specifications
Parameter
Value
NSN
4820-01-458-8578
Primary Part Number
YCM72033
Item Name
Valve,butterfly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Leslie Controls, Inc. Dba Leslie Controls Inc
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-458-8579NC394932POSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-461-31073553-003-419POSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
4820-01-461-59952498-00-300 STYLE A TY LLLM 12INPOSSIBLE MATCH
VALVE,BUTTERFLY
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-461-5999YCS75505POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
5310-01-470-4717NC396218POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-495-5191N73861POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Reference documents
Reference
Meaning
M72033
C/1Advisory reference — outside the item-of-supply concept
Leslie Controls, Inc. Dba Leslie Controls Inc
2498-00-300
D/9Drawing number reference only
Leslie Controls, Inc. Dba Leslie Controls Inc
Related Parts
4820-01-458-8579POSSIBLE MATCH
FLANGE,GLAND,VALVE
NC394932
4820-01-461-3107POSSIBLE MATCH
RETAINER,DISK,VALVE
3553-003-419
4820-01-461-5995POSSIBLE MATCH
VALVE,BUTTERFLY
2498-00-300 STYLE A TY LLLM 12IN
4820-01-461-5999POSSIBLE MATCH
STEM,FLUID VALVE
YCS75505
5310-01-470-4717POSSIBLE MATCH
NUT,SELF-LOCKING,HEXAGON
NC396218
4820-01-495-5191POSSIBLE MATCH
DISK,VALVE
N73861
Frequently Asked Questions
What is NSN 4820-01-458-8578?
NSN 4820-01-458-8578 is a Valve,butterfly, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-458-8578?
NSN 4820-01-458-8578 has 2 manufacturer part numbers on file: DWG 2498-00-300 10INCH (Leslie Controls, Inc. Dba Leslie Controls Inc), YCM72033 (Leslie Controls, Inc. Dba Leslie Controls Inc).
What NSN replaces 4820-01-458-8578?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-458-8579, 4820-01-461-3107, 4820-01-461-5995. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-458-8578 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.