PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GT825DA1Transformer,audio Frequency

Northrop Grumman Systems Corporation · NSN 5950-01-091-4644 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-091-4644 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-091-4644. Primary manufacturer part number: GT825DA1.
Features
  • Transformer,audio Frequency — FSC 5950
  • Terminal Type and Quantity: 4 WIRE LEAD
  • Body Length: 0.875 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
  • Body Height: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
  • Features Provided: COLOR CODED LEAD
  • Mounting Hole Diameter: 0.156 INCHES NOMINAL SINGLE GROUP IN
  • Distance Between Mounting Facility Centers: 0.593 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 2 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-091-4644, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5950-01-091-4644
Primary Part NumberGT825DA1
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Terminal Type and Quantity4 WIRE LEAD
Body Length0.875 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
Body Height0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
Features ProvidedCOLOR CODED LEAD
Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE GROUP IN
Distance Between Mounting Facility Centers0.593 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Winding Operating Current2.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Impedance Rating in Ohms16.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Frequency Rating300.0 HERTZ MINIMUM AND 4.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms300.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2805-00-275-3075W300753 INTERCHANGEABLE
Pin,piston
Northrop Grumman Systems Corporation
5999-01-339-097515884 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Thales Contact Solutions Inc
8145-01-563-7031790E001 INTERCHANGEABLE
Shipping and Storag
Erie Engineered Products, Inc. Dba Erie Engineered Products Inc
Cross-Reference Index
Part NumberManufacturer
118D5500-503 West Electronics Inc (USA)
15884 Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems (USA)
GT825DA1 PRIMARY Northrop Grumman Systems Corporation (USA)
PEI 9977 Precision Electronics, Inc (USA)
Related Parts
2805-00-275-3075INTERCHANGEABLE
PIN,PISTON
W300753
5999-01-339-0975INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
15884
8145-01-563-7031INTERCHANGEABLE
SHIPPING AND STORAG
790E001

Frequently Asked Questions

What is NSN 5950-01-091-4644?

NSN 5950-01-091-4644 is a Transformer,audio Frequency, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-091-4644?

NSN 5950-01-091-4644 has 4 cross-referenced part numbers: 118D5500-503 (West Electronics Inc), 15884 (Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems), GT825DA1 (Northrop Grumman Systems Corporation), PEI 9977 (Precision Electronics, Inc).

What NSN replaces 5950-01-091-4644?

There are 3 known substitutes for 5950-01-091-4644: 2805-00-275-3075, 5999-01-339-0975, 8145-01-563-7031. Verify interchangeability with system specifications before substitution.

What are the specifications of GT825DA1?

Key specifications for GT825DA1: Terminal Type and Quantity: 4 WIRE LEAD; Body Length: 0.875 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN; Body Height: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN; Features Provided: COLOR CODED LEAD. 17 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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