PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-3506Transformer,power

Tranex, Inc. · NSN 5950-01-072-3977 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-072-3977 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-072-3977. Primary manufacturer part number: 4-3506.
Features
  • Transformer,power — FSC 5950
  • Distance Between Mounting Facility Centers: 3.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Winding Operating Voltage: 19.80 DC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Body Width: 2.500 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 6 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-072-3977, 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 Tranex, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-072-3977
Primary Part Number4-3506
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTranex, Inc.
StatusACTIVE
Distance Between Mounting Facility Centers3.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage19.80 DC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Body Width2.500 INCHES MAXIMUM IN
Terminal Type and Quantity6 TAB, SOLDER LUG
Inclosure TypeOPEN
Mounting Hole Diameter0.180 INCHES NOMINAL SINGLE GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Frequency Rating47.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Power Rating7.92 VOLTS-AMPERES SINGLE COMPONENT ALL SECONDARY
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length3.000 INCHES NOMINAL IN
Winding Operating Current400.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT ALL SECONDARY
Mounting Facility Quantity2 SINGLE GROUP
Body Height2.500 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3455-00-764-35801741-0437 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5340-00-796-43415340A01-003 INTERCHANGEABLE
Clamp,loop
Us Army Aviation and Missile Command
4620-00-852-702043506-135SS1250SP INTERCHANGEABLE
Ejector,air
Siemens Energy, Inc.
5330-01-157-19094350600000 INTERCHANGEABLE
Gasket
Molex, Llc
5910-01-296-51674350-6 INTERCHANGEABLE
Capacitor
Avo Intl
5331-01-416-889843506 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
4320-01-549-006043506 INTERCHANGEABLE
Deflector,dirt and Liquid
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
4-3506 Tranex, Inc. (USA)
1254444-01 Ampex Systems Corp (USA)
SP-1254444 Ampex Systems Corp (USA)
Related Parts
3455-00-764-3580INTERCHANGEABLE
CUTTER,MILLING,END
1741-0437
5340-00-796-4341INTERCHANGEABLE
CLAMP,LOOP
5340A01-003
4620-00-852-7020INTERCHANGEABLE
EJECTOR,AIR
43506-135SS1250SP
5330-01-157-1909INTERCHANGEABLE
GASKET
4350600000
5910-01-296-5167INTERCHANGEABLE
CAPACITOR
4350-6
5331-01-416-8898INTERCHANGEABLE
O-RING
43506
4320-01-549-0060INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
43506

Frequently Asked Questions

What is NSN 5950-01-072-3977?

NSN 5950-01-072-3977 is a Transformer,power, manufactured by Tranex, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-072-3977?

NSN 5950-01-072-3977 has 3 cross-referenced part numbers: 4-3506 (Tranex, Inc.), 1254444-01 (Ampex Systems Corp), SP-1254444 (Ampex Systems Corp).

What NSN replaces 5950-01-072-3977?

There are 7 known substitutes for 5950-01-072-3977: 3455-00-764-3580, 5340-00-796-4341, 4620-00-852-7020 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-3506?

Key specifications for 4-3506: Distance Between Mounting Facility Centers: 3.560 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP. 18 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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