Gear Operator, Valve 4820-01-398-4557 NSN 4820-01-398-4557 · NIIN 013984557 · Part number VT20
Velan Valve Corp. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 57574
NSN 4820-01-398-4557 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-398-4557. Manufacturer of record part number: VT20 .
Also searched as
4820-01-398-4557 ·
4820013984557 ·
NIIN 013984557 ·
01-398-4557 ·
FSC 4820 Valves, Nonpowered · CAGE 57574 · VT20 · 9500-029 MODEL VT20
Nearby stock numbers
← 4820-01-398-4556 Valve, Gate
·
4820-01-398-4558 Valve, Globe →
4820-01-398-4557 — Valves, Nonpowered
Features
Gear Operator,valve — FSC 4820 Gear Type: SPUR Material: STEEL 2 manufacturer part numbers on file Manufacturer of record: Velan Valve Corp.
Identification
NSN: 4820-01-398-4557
NIIN: 013984557
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: VT20
Manufacturer: Velan Valve Corp.
General Description
The Gear Operator,valve, cataloged under National Stock Number 4820-01-398-4557, 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 2 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. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4820-01-398-4557 Primary Part Number VT20 Item Name Gear Operator,valve FSC / FSG 4820 / 48 — Valves, Nonpowered Manufacturer Velan Valve Corp. Status ACTIVE Gear Type SPUR Material STEEL
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
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-398-4557?
NSN 4820-01-398-4557 is a Gear Operator,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-398-4557?
NSN 4820-01-398-4557 has 2 manufacturer part numbers on file: VT20 (Velan Valve Corp.), 9500-029 MODEL VT20 (Velan Valve Corp.).
What are the specifications of VT20?
Key specifications for VT20: Gear Type: SPUR; Material: STEEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-398-4557 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.
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