Disk, Valve4820-01-144-9667

NSN 4820-01-144-9667 · NIIN 011449667 · Part number H-2255 PIECE 10

Siemens Energy, Inc. · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 16712

Government record, cited

NSN 4820-01-144-9667 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-144-9667. Manufacturer of record part number: H-2255 PIECE 10.

Also searched as 4820-01-144-9667 · 4820011449667 · NIIN 011449667 · 01-144-9667 · FSC 4820 Valves, Nonpowered · CAGE 16712 · H-2255 PIECE 10 · H-2255 · M-225M

Nearby stock numbers ← 4820-01-144-9666 Stem, Fluid Valve · 4820-01-144-9668 Stem, Needle Valve →

4820-01-144-9667 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Siemens Energy, Inc.

Identification

NSN: 4820-01-144-9667
NIIN: 011449667
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: H-2255 PIECE 10
Manufacturer: Siemens Energy, Inc.

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-144-9667, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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	Disk,valve
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Siemens Energy, Inc. (CAGE 16712)

Technical Specifications

Parameter	Value
NSN	4820-01-144-9667
Primary Part Number	H-2255 PIECE 10
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Siemens Energy, 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 Items 2

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-145-0460M-62F POSSIBLE MATCH

SEAT,VALVE

Possible match (shared part number)Siemens Energy, Inc.

2825-01-157-3531H-2255 PC 11 POSSIBLE MATCH

PISTON,MAIN PROPULSION TURBINE

Possible match (shared part number)Siemens Energy, Inc.

Cross-Reference Index

Part Number	Manufacturer
H-2255 PIECE 10 PRIMARY	Siemens Energy, Inc. (USA)
M-225M PRIMARY	Siemens Energy, Inc. (USA)

Reference documents

Reference	Meaning
H-2255	D/9 Drawing number reference only Siemens Energy, Inc.

Related Parts

4820-01-145-0460POSSIBLE MATCH

SEAT,VALVE

M-62F

2825-01-157-3531POSSIBLE MATCH

PISTON,MAIN PROPULSION TURBINE

H-2255 PC 11

Frequently Asked Questions

What is NSN 4820-01-144-9667?

NSN 4820-01-144-9667 is a Disk,valve, manufactured by Siemens Energy, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-144-9667?

NSN 4820-01-144-9667 has 2 manufacturer part numbers on file: H-2255 PIECE 10 (Siemens Energy, Inc.), M-225M (Siemens Energy, Inc.).

What NSN replaces 4820-01-144-9667?

2 possible matches (shared part number, not a government interchangeability claim): 4820-01-145-0460, 2825-01-157-3531. Verify interchangeability with system specifications before substitution.

Is NSN 4820-01-144-9667 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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