NSN 4820-01-398-8479 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-398-8479. Manufacturer of record part number: 20624.
Also searched as4820-01-398-8479 ·
4820013988479 ·
NIIN 013988479 ·
01-398-8479 ·
FSC 4820 Valves, Nonpowered · CAGE 35795 · 20624
Manufacturer of record: Leslie Controls, Inc. Dba Leslie Controls Inc
Identification
NSN: 4820-01-398-8479
NIIN: 013988479
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 20624
Manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
General Description
The Piston,valve, cataloged under National Stock Number 4820-01-398-8479, 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. Government technical data includes 3 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. 3 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
4820-01-398-8479
Primary Part Number
20624
Item Name
Piston,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Leslie Controls, Inc. Dba Leslie Controls Inc
Status
ACTIVE
Valve Size for Which Designed
2.000 INCHES IN
Valve Design Control Activity
35795
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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5315-01-409-288920-624POSSIBLE MATCH
PIN,STRAIGHT,HEADLESS
Possible match (shared part number)Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
4730-01-517-1057C20624POSSIBLE MATCH
ELBOW,HOSE
Possible match (shared part number)Hydrasearch Company, Llc
5110-01-585-108520624POSSIBLE MATCH
DIE SET,METAL STAMPING,HAND
Possible match (shared part number)Hanson, C H Company, the
Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5315-01-409-2889POSSIBLE MATCH
PIN,STRAIGHT,HEADLESS
20-624
4730-01-517-1057POSSIBLE MATCH
ELBOW,HOSE
C20624
5110-01-585-1085POSSIBLE MATCH
DIE SET,METAL STAMPING,HAND
20624
Frequently Asked Questions
What is NSN 4820-01-398-8479?
NSN 4820-01-398-8479 is a Piston,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-398-8479?
NSN 4820-01-398-8479 has 1 manufacturer part number on file: 20624 (Leslie Controls, Inc. Dba Leslie Controls Inc).
What NSN replaces 4820-01-398-8479?
3 possible matches (shared part number, not a government interchangeability claim): 5315-01-409-2889, 4730-01-517-1057, 5110-01-585-1085. Verify interchangeability with system specifications before substitution.
What are the specifications of 20624?
Key specifications for 20624: Valve Size for Which Designed: 2.000 INCHES IN; Valve Design Control Activity: 35795; Material: COPPER ALLOY. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-398-8479 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.