PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GA51122Transformer,audio Frequency

At and T Corp · NSN 5950-00-645-6403 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-6403 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-6403. Primary manufacturer part number: GA51122.
Features
  • Transformer,audio Frequency — FSC 5950
  • Body Height: 2.000 INCHES NOMINAL IN
  • Transformer Function: OUTPUT
  • Distance Between Mounting Facility Centers: 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Maximum Operating Temp: 85.0 CELSIUS DEGC
  • Impedance Rating in Ohms: 4200.0 NOMINAL AND 25200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-6403, 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 At and T Corp. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-6403
Primary Part NumberGA51122
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAt and T Corp
StatusACTIVE
Body Height2.000 INCHES NOMINAL IN
Transformer FunctionOUTPUT
Distance Between Mounting Facility Centers0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting Facility Quantity2 SINGLE GROUP
Maximum Operating Temp85.0 CELSIUS DEGC
Impedance Rating in Ohms4200.0 NOMINAL AND 25200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Primary to Secondary Turn Ratio1 TO 6.034 SINGLE COMPONENT
Frequency Rating200.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length1.375 INCHES NOMINAL IN
Terminal Type and Quantity6 WIRE HOOK
Thread Quantity Per Inch32 SINGLE GROUP
Body Width0.906 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5996-00-112-45884170 INTERCHANGEABLE
Amplifier,magnetic
Spang & Company Dba Magnetics Division
5940-00-204-82254-170 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
5310-00-272-7310G-88-137 INTERCHANGEABLE
Washer,flat
M.t. Davidson Company
4730-00-391-4598 INTERCHANGEABLE
Sleeve,hose Connector
3020-00-480-31384170 INTERCHANGEABLE
Gear,spur
Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division
5340-00-495-3356 INTERCHANGEABLE
Standoff,threaded,spacing
5330-00-641-097253X2519 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5315-00-664-5698A6753 INTERCHANGEABLE
Pin,straight,headless
Aerocontrolex Group, Inc. Div Talley Actuators
4530-00-736-9228 INTERCHANGEABLE
Plate,sprayer,oil Burner Atomize
5365-00-737-1591A6753 INTERCHANGEABLE
Shim Set
Am General Llc
Cross-Reference Index
Part NumberManufacturer
GA51122 At and T Corp (USA)
SCC63173 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
GA51122 American Telephone and Telegraph Co (USA)
GA51122 A T and T Tecnologies Inc Sub of American Telephone and Telegraph North Carolina Works
AT-1810 Hytronics Corp. (USA)
A6753 Autodyne Manufacturing Co Inc (USA)
39279 Freed Transformer Co (USA)
4170 Precision Electronics, Inc (USA)
Related Parts
5996-00-112-4588INTERCHANGEABLE
AMPLIFIER,MAGNETIC
4170
5940-00-204-8225INTERCHANGEABLE
TERMINAL BOARD
4-170
5310-00-272-7310INTERCHANGEABLE
WASHER,FLAT
G-88-137
4730-00-391-4598INTERCHANGEABLE
SLEEVE,HOSE CONNECTOR
3020-00-480-3138INTERCHANGEABLE
GEAR,SPUR
4170
5340-00-495-3356INTERCHANGEABLE
STANDOFF,THREADED,SPACING
5330-00-641-0972INTERCHANGEABLE
SEAL,PLAIN ENCASED
53X2519
5315-00-664-5698INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
A6753
4530-00-736-9228INTERCHANGEABLE
PLATE,SPRAYER,OIL BURNER ATOMIZE
5365-00-737-1591INTERCHANGEABLE
SHIM SET
A6753
5930-00-924-2002INTERCHANGEABLE
SWITCH,SPEED
5985-01-003-7047INTERCHANGEABLE
ADJUSTER,END PLAY
39279

Frequently Asked Questions

What is NSN 5950-00-645-6403?

NSN 5950-00-645-6403 is a Transformer,audio Frequency, manufactured by At and T Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-6403?

NSN 5950-00-645-6403 has 8 cross-referenced part numbers: GA51122 (At and T Corp), SCC63173 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), GA51122 (American Telephone and Telegraph Co), GA51122 (A T and T Tecnologies Inc Sub of American Telephone and Telegraph North Carolina Works), AT-1810 (Hytronics Corp.) and 3 more.

What NSN replaces 5950-00-645-6403?

There are 12 known substitutes for 5950-00-645-6403: 5996-00-112-4588, 5940-00-204-8225, 5310-00-272-7310 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GA51122?

Key specifications for GA51122: Body Height: 2.000 INCHES NOMINAL IN; Transformer Function: OUTPUT; Distance Between Mounting Facility Centers: 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 20 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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