PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9T51B7Transformer,power

General Electric Co Motor Business Group · NSN 5950-00-788-7590 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-788-7590 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-788-7590. Primary manufacturer part number: 9T51B7.
Features
  • Transformer,power — FSC 5950
  • Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN
  • Body Width: 3.625 INCHES NOMINAL IN
  • Body Height: 7.750 INCHES NOMINAL IN
  • Winding Operating Voltage: 240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Inclosure Type: PARTIALLY INCLOSED, DOUBLE SHELL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-788-7590, 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 General Electric Co Motor Business Group. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-788-7590
Primary Part Number9T51B7
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerGeneral Electric Co Motor Business Group
StatusCANCELLED
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Body Width3.625 INCHES NOMINAL IN
Body Height7.750 INCHES NOMINAL IN
Winding Operating Voltage240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity2 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Distance Between Mounting Facility Centers3.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length7.750 INCHES NOMINAL IN
Winding Operating Voltage120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3110-00-100-0240220316 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Acf Industries Inc
6615-00-180-8556JH6272 INTERCHANGEABLE
Tubing,elbow Bank a
Strube Inc
1650-00-345-92846272 INTERCHANGEABLE
Cap,filler,aircraft
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
4730-00-895-77946272 INTERCHANGEABLE
Strainer Element,sediment
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5950-01-025-2268792536-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
4730-01-234-17577Z588-9372 INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
5945-01-245-99906272 INTERCHANGEABLE
Solenoid,electrical
Rocker Solenoid Co Dba Rocker Solenoid Co
5999-01-290-23256-27-2 INTERCHANGEABLE
Contact Kit,electrical
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
Cross-Reference Index
Part NumberManufacturer
6272 Hoyt Corporation (USA)
9T51Y6431 General Electric Co Motor Business Group (USA)
9T51B7 PRIMARY General Electric Co Motor Business Group (USA)
9T51Y7 General Electric Co Motor Business Group (USA)
Related Parts
3110-00-100-0240INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
220316
6615-00-180-8556INTERCHANGEABLE
TUBING,ELBOW BANK A
JH6272
1650-00-345-9284INTERCHANGEABLE
CAP,FILLER,AIRCRAFT
6272
4730-00-895-7794INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
6272
5950-01-025-2268INTERCHANGEABLE
TRANSFORMER,POWER
792536-1
4730-01-234-1757INTERCHANGEABLE
CLAMP,HOSE
7Z588-9372
5945-01-245-9990INTERCHANGEABLE
SOLENOID,ELECTRICAL
6272
5999-01-290-2325INTERCHANGEABLE
CONTACT KIT,ELECTRICAL
6-27-2

Frequently Asked Questions

What is NSN 5950-00-788-7590?

NSN 5950-00-788-7590 is a Transformer,power, manufactured by General Electric Co Motor Business Group, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-788-7590?

NSN 5950-00-788-7590 has 4 cross-referenced part numbers: 6272 (Hoyt Corporation), 9T51Y6431 (General Electric Co Motor Business Group), 9T51B7 (General Electric Co Motor Business Group), 9T51Y7 (General Electric Co Motor Business Group).

What NSN replaces 5950-00-788-7590?

There are 8 known substitutes for 5950-00-788-7590: 3110-00-100-0240, 6615-00-180-8556, 1650-00-345-9284 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9T51B7?

Key specifications for 9T51B7: Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN; Body Width: 3.625 INCHES NOMINAL IN; Body Height: 7.750 INCHES NOMINAL IN; Winding Operating Voltage: 240.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-788-7590 still in active supply?

NSN 5950-00-788-7590 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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