PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2500703Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-01-031-7680 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-031-7680 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-031-7680. Primary manufacturer part number: 2500703.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 21.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Current: 70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Frequency Rating: 400.0 HERTZ MINIMUM AND 1.2 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Mounting Method: BRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
  • Transformer Winding Connection Type: OPEN DELTA-OPEN DELTA
  • Mounting Hole Diameter: 0.161 INCHES NOMINAL SINGLE GROUP IN
  • Winding Operating Voltage: 21.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-031-7680, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-031-7680
Primary Part Number2500703
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Winding Operating Voltage21.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Current70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating400.0 HERTZ MINIMUM AND 1.2 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Transformer Winding Connection TypeOPEN DELTA-OPEN DELTA
Mounting Hole Diameter0.161 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Voltage21.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Mounting Facility Quantity4 SINGLE GROUP
Body Width2.562 INCHES MAXIMUM IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Maximum Transformer Power Rating100.0 WATTS SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length3.250 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage13.50 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity12 WIRE HOOK
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6160-00-128-015027103-001 INTERCHANGEABLE
Liner,battery Box-Battery Tray
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
5905-00-279-4359 INTERCHANGEABLE
Resistor,fixed,film
2920-00-504-17213379536 INTERCHANGEABLE
End Bell,electrical Rotating Equ
Hatch & Kirk, Inc.
5935-00-532-0448 INTERCHANGEABLE
Connector,receptacle,electrical
5340-00-910-67362710-00300 INTERCHANGEABLE
Shield,expansion
Star Expansion Co
4140-00-972-880427103 INTERCHANGEABLE
Plunger,oil Pump
Paxton Products Inc
5330-00-989-7350A1205L740 INTERCHANGEABLE
Seal,plain Encased
Meritor Industrial Products, Llc
5360-01-033-251327103 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5930-01-147-898127103 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5935-01-486-764427-103 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
Cross-Reference Index
Part NumberManufacturer
2500703 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
W-9208 Cen Electronics a Div of Chloride Power Electronics Inc (USA)
2500703 Cen Electronics a Div of Chloride Power Electronics Inc (USA)
27103 Torotel, Inc. Div Torotel Products, Inc. (USA)
Related Parts
6160-00-128-0150INTERCHANGEABLE
LINER,BATTERY BOX-BATTERY TRAY
27103-001
5905-00-279-4359INTERCHANGEABLE
RESISTOR,FIXED,FILM
2920-00-504-1721INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
3379536
5935-00-532-0448INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5340-00-910-6736INTERCHANGEABLE
SHIELD,EXPANSION
2710-00300
4140-00-972-8804INTERCHANGEABLE
PLUNGER,OIL PUMP
27103
5330-00-989-7350INTERCHANGEABLE
SEAL,PLAIN ENCASED
A1205L740
5360-01-033-2513INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
27103
5930-01-147-8981INTERCHANGEABLE
SWITCH,FLOW
27103
5935-01-486-7644INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
27-103
5340-01-651-9795INTERCHANGEABLE
BRACKET,ANGLE
27103

Frequently Asked Questions

What is NSN 5950-01-031-7680?

NSN 5950-01-031-7680 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-031-7680?

NSN 5950-01-031-7680 has 4 cross-referenced part numbers: 2500703 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), W-9208 (Cen Electronics a Div of Chloride Power Electronics Inc), 2500703 (Cen Electronics a Div of Chloride Power Electronics Inc), 27103 (Torotel, Inc. Div Torotel Products, Inc.).

What NSN replaces 5950-01-031-7680?

There are 11 known substitutes for 5950-01-031-7680: 6160-00-128-0150, 5905-00-279-4359, 2920-00-504-1721 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2500703?

Key specifications for 2500703: Winding Operating Voltage: 21.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY; Winding Operating Current: 70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Frequency Rating: 400.0 HERTZ MINIMUM AND 1.2 KILOHERTZ MAXIMUM SINGLE COMPONENT; Mounting Method: BRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP. 21 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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