PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-1809Transformer,power

Tranex, Inc. · NSN 5950-00-498-5570 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-498-5570 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-498-5570. Primary manufacturer part number: 4-1809.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Power Rating: 8.6 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY
  • Winding Power Rating: 40.0 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Winding Function and Quantity: 2 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-498-5570, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-00-498-5570
Primary Part Number4-1809
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTranex, Inc.
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Power Rating8.6 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY
Winding Power Rating40.0 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
Winding Operating Current4.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current2.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage10.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage86.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity12 TAB, SOLDER LUG
Winding Power Rating52.0 VOLTS-AMPERES SINGLE COMPONENT FIRST SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 400.0 HERTZ MAXIMUM SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Length3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-172-75479121-1 INTERCHANGEABLE
Pin,straight,headless
Cummins Inc.
5365-00-216-550891211 INTERCHANGEABLE
Shim,solenoid Valve
Hamilton Sundstrand Corporation Dba Collins Aerospace
5310-00-262-471111A7231 INTERCHANGEABLE
Washer,flat
Napco International Llc Dba Napco International Inc
5306-00-415-54189121-1 INTERCHANGEABLE
Rod,threaded End
Cooper Machinery Services Llc
5315-00-653-57797057652 INTERCHANGEABLE
Pin,shoulder,headless
U S Army Tank Automotive Command Amsta-Im-Mm
5935-00-671-6828 INTERCHANGEABLE
Connector,receptacle,electrical
5330-01-219-70489121-1 INTERCHANGEABLE
Seal,plain
Eaton Corporation Div Eaton Fluid Power
8520-01-286-922191211 INTERCHANGEABLE
Soap,toilet
Sani-Fresh International
4920-01-296-157091211 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
3110-01-330-197141809 INTERCHANGEABLE
Bearing,ball,annular
Wilshire Corp
Cross-Reference Index
Part NumberManufacturer
4-1809 PRIMARY Tranex, Inc. (USA)
91-211 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
Related Parts
5315-00-172-7547INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
9121-1
5365-00-216-5508INTERCHANGEABLE
SHIM,SOLENOID VALVE
91211
5310-00-262-4711INTERCHANGEABLE
WASHER,FLAT
11A7231
5306-00-415-5418INTERCHANGEABLE
ROD,THREADED END
9121-1
5315-00-653-5779INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
7057652
5935-00-671-6828INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5330-01-219-7048INTERCHANGEABLE
SEAL,PLAIN
9121-1
8520-01-286-9221INTERCHANGEABLE
SOAP,TOILET
91211
4920-01-296-1570INTERCHANGEABLE
TEST PROGRAM SET
91211
3110-01-330-1971INTERCHANGEABLE
BEARING,BALL,ANNULAR
41809
6615-01-354-7527INTERCHANGEABLE
GYROSCOPE,RATE
9121-1
5331-01-633-5229INTERCHANGEABLE
O-RING
41809

Frequently Asked Questions

What is NSN 5950-00-498-5570?

NSN 5950-00-498-5570 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 5950-00-498-5570?

NSN 5950-00-498-5570 has 2 cross-referenced part numbers: 4-1809 (Tranex, Inc.), 91-211 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant).

What NSN replaces 5950-00-498-5570?

There are 12 known substitutes for 5950-00-498-5570: 5315-00-172-7547, 5365-00-216-5508, 5310-00-262-4711 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-1809?

Key specifications for 4-1809: Mounting Facility Quantity: 4 SINGLE GROUP; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Power Rating: 8.6 VOLTS-AMPERES SINGLE COMPONENT THIRD SECONDARY; Winding Power Rating: 40.0 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY. 24 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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