NSN 2825-01-168-4345 · NIIN 011684345 · Part number M1841AV
Siemens Energy, Inc. · FSC 2825 — Steam Turbines and Components · FSG 28 — Engines, Turbines, and Components · CAGE 16712
Government record, cited
NSN 2825-01-168-4345 — this item is cataloged by the U.S. Government under National Stock Number 2825-01-168-4345. Manufacturer of record part number: M1841AV.
Also searched as2825-01-168-4345 ·
2825011684345 ·
NIIN 011684345 ·
01-168-4345 ·
FSC 2825 Steam Turbines and Components · CAGE 16712 · M1841AV · F7757 · F7757 PIECE 76
The Fork,steam Seal Regulator, cataloged under National Stock Number 2825-01-168-4345, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Siemens Energy, Inc.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
2825-01-168-4345
Primary Part Number
M1841AV
Item Name
Fork,steam Seal Regulator
FSC / FSG
2825 / 28 — Steam Turbines and Components
Manufacturer
Siemens Energy, Inc.
Status
ACTIVE
General Characteristics Item Description
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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2825-01-168-4347F7757 PIECE 153POSSIBLE MATCH
SOCKET,VALVE
Possible match (shared part number)Siemens Energy, Inc.
5365-01-168-6436M215NVPOSSIBLE MATCH
BUSHING
Possible match (shared part number)Siemens Energy, Inc.
4820-01-168-6437F7757 PIECE 28POSSIBLE MATCH
COVER,STEAM SEAL REAR
Possible match (shared part number)Siemens Energy, Inc.
4820-01-168-7616M225AEPOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Siemens Energy, Inc.
2825-01-170-2486M-1822KDPOSSIBLE MATCH
PILOT VALVE AND SLEEVE ASSEMBLY
Possible match (shared part number)Siemens Energy, Inc.
2825-01-170-2487M-738ACPOSSIBLE MATCH
BELLOWS,STEAM TURBINE
Possible match (shared part number)Siemens Energy, Inc.
NSN 2825-01-168-4345 is a Fork,steam Seal Regulator, manufactured by Siemens Energy, Inc., classified under FSC 2825, Steam Turbines and Components. Status: active.
What part numbers are listed for NSN 2825-01-168-4345?
NSN 2825-01-168-4345 has 2 manufacturer part numbers on file: M1841AV (Siemens Energy, Inc.), F7757 PIECE 76 (Siemens Energy, Inc.).
What NSN replaces 2825-01-168-4345?
6 possible matches (shared part number, not a government interchangeability claim): 2825-01-168-4347, 5365-01-168-6436, 4820-01-168-6437. Verify interchangeability with system specifications before substitution.
What are the specifications of M1841AV?
Key specifications for M1841AV: General Characteristics Item Description: STEEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 2825-01-168-4345 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.