PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4990Shaft Assembly

Northrop Grumman Systems Corporation Div Marine Systems · NSN 2825-00-389-8567 · FSC 2825 · No Item Name Available
Verified by PartsTable
NSN 2825-00-389-8567 — this item is cataloged by the U.S. Government under National Stock Number 2825-00-389-8567. Primary manufacturer part number: 4990.
Features
  • Shaft Assembly — FSC 2825
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Div Marine Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shaft Assembly, cataloged under National Stock Number 2825-00-389-8567, is classified within Federal Supply Class 2825 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation Div Marine Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2825-00-389-8567
Primary Part Number4990
Item NameShaft Assembly
FSC / FSG2825 / 28 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-189-3631X3250-17 INTERCHANGEABLE
Coil,radio Frequency
Hickok Waekon Llc
5945-00-193-355426437 INTERCHANGEABLE
Solenoid,electrical
Hydro-Aire Aerospace Corp
5330-00-218-2698 INTERCHANGEABLE
Retainer,packing
5330-00-246-40604990 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5910-00-669-44414990-000 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Stromberg-Carlson Corp a Plessey Telecommunications Co
5120-01-095-8091 INTERCHANGEABLE
Inserter,integrated Circuit
Cross-Reference Index
Part NumberManufacturer
4990 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
4990 Westinghouse Electric Corp (USA)
Related Parts
5950-00-189-3631INTERCHANGEABLE
COIL,RADIO FREQUENCY
X3250-17
5945-00-193-3554INTERCHANGEABLE
SOLENOID,ELECTRICAL
26437
5330-00-218-2698INTERCHANGEABLE
RETAINER,PACKING
5330-00-246-4060INTERCHANGEABLE
SEAL,PLAIN ENCASED
4990
5910-00-669-4441INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
4990-000
5120-01-095-8091INTERCHANGEABLE
INSERTER,INTEGRATED CIRCUIT

Frequently Asked Questions

What is NSN 2825-00-389-8567?

NSN 2825-00-389-8567 is a Shaft Assembly, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 2825 (No Item Name Available). Status: active.

What are the part numbers for NSN 2825-00-389-8567?

NSN 2825-00-389-8567 has 2 cross-referenced part numbers: 4990 (Northrop Grumman Systems Corporation Div Marine Systems), 4990 (Westinghouse Electric Corp).

What NSN replaces 2825-00-389-8567?

There are 6 known substitutes for 2825-00-389-8567: 5950-00-189-3631, 5945-00-193-3554, 5330-00-218-2698 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4990?

Key specifications for 4990: End Item Identification: STEAM TURBINE,SHIPS PROPULSION SYSTEM. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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