NSN 4820-01-308-5328 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-308-5328. Manufacturer of record part number: 2570-50-210.
Pressure Rating: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Taper Minor Diameter: 0.417 INCHES MAXIMUM IN
Style Designator: SOLID WEDGE
Taper Length: 0.781 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING
2 manufacturer part numbers on file
Manufacturer of record: Velan Valve Corp.
Identification
NSN: 4820-01-308-5328
NIIN: 013085328
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2570-50-210
Manufacturer: Velan Valve Corp.
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-308-5328, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-308-5328
Primary Part Number
2570-50-210
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Velan Valve Corp.
Status
ACTIVE
Pressure Rating
3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Taper Minor Diameter
0.417 INCHES MAXIMUM IN
Style Designator
SOLID WEDGE
Taper Length
0.781 INCHES NOMINAL IN
Material
STEEL CORROSION RESISTING
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 Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-377-3093W06-1054B-14MS AND CDS 53374POSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Velan Valve Corp.
4820-01-377-747823399-5 AND CD 53374 ITEM 7POSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Velan Valve Corp.
4820-01-514-50102577-062-C36-SPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Velan Valve Corp.
3120-01-514-99862547-001-062POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Velan Valve Corp.
3120-01-523-88712604-000-052-LPOSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Velan Valve Corp.
4820-01-526-2297F07-0054B-13MY/CD53446POSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Velan Valve Corp.
4820-01-526-65572564-095-062POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Velan Valve Corp.
3120-01-527-06852544-001-062POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Velan Valve Corp.
4820-01-529-99512563-075-062POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Velan Valve Corp.
3120-01-618-85392546-009-062POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Velan Valve Corp.
NSN 4820-01-308-5328 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-308-5328?
NSN 4820-01-308-5328 has 2 manufacturer part numbers on file: 23399-5 PIECE 6 (Velan Valve Corp.), 2570-50-210 (Velan Valve Corp.).
What NSN replaces 4820-01-308-5328?
10 possible matches (shared part number, not a government interchangeability claim): 4820-01-377-3093, 4820-01-377-7478, 4820-01-514-5010. Verify interchangeability with system specifications before substitution.
What are the specifications of 2570-50-210?
Key specifications for 2570-50-210: Overall Height: 1.188 INCHES NOMINAL IN; Pressure Rating: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Taper Minor Diameter: 0.417 INCHES MAXIMUM IN; Style Designator: SOLID WEDGE. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-308-5328 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.