Seat, Valve4820-01-415-2561

NSN 4820-01-415-2561 · NIIN 014152561 · Part number 9018-027-002

Velan Valve Corp. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 57574

Government record, cited

NSN 4820-01-415-2561 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-415-2561. Manufacturer of record part number: 9018-027-002.

Also searched as 4820-01-415-2561 · 4820014152561 · NIIN 014152561 · 01-415-2561 · FSC 4820 Valves, Nonpowered · CAGE 57574 · 9018-027-002 · 65N-8880-018 ITEM 5 · 65N-8880-018

Nearby stock numbers ← 4820-01-415-2560 Cap, Valve · 4820-01-415-2563 Stem, Fluid Valve →

4820-01-415-2561 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Flange Diameter: 8.125 INCHES NOMINAL IN
Body Outside Diameter: 7.125 INCHES NOMINAL IN
Material: STEEL SEAT
2 manufacturer part numbers on file
Manufacturer of record: Velan Valve Corp.

Identification

NSN: 4820-01-415-2561
NIIN: 014152561
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 9018-027-002
Manufacturer: Velan Valve Corp.

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-415-2561, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-415-2561
Primary Part Number	9018-027-002
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Velan Valve Corp.
Status	ACTIVE
Flange Diameter	8.125 INCHES NOMINAL IN
Body Outside Diameter	7.125 INCHES NOMINAL IN
Material	STEEL SEAT

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

Cross-Reference Index

Part Number	Manufacturer
65N-8880-018 ITEM 5	Velan Valve Corp. (USA)
9018-027-002 PRIMARY	Velan Valve Corp. (USA)

Reference documents

Reference	Meaning
65N-8880-018	D/9 Drawing number reference only Velan Valve Corp.

Frequently Asked Questions

What is NSN 4820-01-415-2561?

NSN 4820-01-415-2561 is a Seat,valve, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-415-2561?

NSN 4820-01-415-2561 has 2 manufacturer part numbers on file: 65N-8880-018 ITEM 5 (Velan Valve Corp.), 9018-027-002 (Velan Valve Corp.).

What are the specifications of 9018-027-002?

Key specifications for 9018-027-002: Flange Diameter: 8.125 INCHES NOMINAL IN; Body Outside Diameter: 7.125 INCHES NOMINAL IN; Special Features: USED ON 8IN VALVE,GATE IN; Material: STEEL SEAT. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-415-2561 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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