PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A51C9001-21Actuator,electro-Mechanical,line

Northrop Grumman Systems Corporation · NSN 1680-01-166-4925 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-01-166-4925 — this item is cataloged by the U.S. Government under National Stock Number 1680-01-166-4925. Primary manufacturer part number: A51C9001-21.
Features
  • Actuator,electro-Mechanical,line — FSC 1680
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.
  • 3 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Actuator,electro-Mechanical,line, cataloged under National Stock Number 1680-01-166-4925, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-01-166-4925
Primary Part NumberA51C9001-21
Item NameActuator,electro-Mechanical,line
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-702-6596SAE J513 4-4 010107 INTERCHANGEABLE
Coupling,tube
Sae International Dba Sae International
5961-00-840-7958U44 INTERCHANGEABLE
Semiconductor Device,diode
Texas Instruments Incorporated
5962-01-324-765872-00910-107 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company
Cross-Reference Index
Part NumberManufacturer
A51C9001-21 Northrop Grumman Systems Corporation (USA)
A51C9001-21 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA)
U44 Mpc Products Corporation Dba Woodward Mpc, Inc. (USA)
Related Parts
4730-00-702-6596INTERCHANGEABLE
COUPLING,TUBE
SAE J513 4-4 010107
5961-00-840-7958INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
U44
5962-01-324-7658INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
72-00910-107

Frequently Asked Questions

What is NSN 1680-01-166-4925?

NSN 1680-01-166-4925 is a Actuator,electro-Mechanical,line, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-01-166-4925?

NSN 1680-01-166-4925 has 3 cross-referenced part numbers: A51C9001-21 (Northrop Grumman Systems Corporation), A51C9001-21 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), U44 (Mpc Products Corporation Dba Woodward Mpc, Inc.).

What NSN replaces 1680-01-166-4925?

There are 3 known substitutes for 1680-01-166-4925: 4730-00-702-6596, 5961-00-840-7958, 5962-01-324-7658. Verify interchangeability with system specifications before substitution.

What are the specifications of A51C9001-21?

Key specifications for A51C9001-21: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.. 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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