PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

408BTransformer,power

Lucent Technologies Inc Corporate Headquarters · NSN 5950-00-244-8305 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-244-8305 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-244-8305. Primary manufacturer part number: 408B.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Operating Current: 0.47 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Frequency Rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Winding Operating Voltage: 6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Quantity Per Inch: 32 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-244-8305, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-244-8305
Primary Part Number408B
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusCANCELLED
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current0.47 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Thread Quantity Per Inch32 SINGLE GROUP
Body Length3.625 INCHES NOMINAL IN
Terminal Type and Quantity4 TURRET
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Height5.000 INCHES NOMINAL IN
Body Width2.812 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length1.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Current6.6 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5330-00-143-6883250037A1 INTERCHANGEABLE
Gasket
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5975-00-152-1147 INTERCHANGEABLE
Box Connector,electrical
5330-00-413-2581408B INTERCHANGEABLE
Packing
Milton Roy Llc Dba Milton Roy Americas
6130-00-451-9723408B INTERCHANGEABLE
Power Supply
Fluke Corp
6625-00-982-3131 INTERCHANGEABLE
Oscillator,power As
5815-01-133-366540/8B INTERCHANGEABLE
Teletypewriter
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
408BTRANSF0RMER American Telephone and Telegraph Co (USA)
408B Lucent Technologies Inc Dba Federal Marketing Group (USA)
ES0645886 At and T Corp (USA)
408B PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
ES0645886 American Telephone and Telegraph Co (USA)
Related Parts
5330-00-143-6883INTERCHANGEABLE
GASKET
250037A1
5975-00-152-1147INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5330-00-413-2581INTERCHANGEABLE
PACKING
408B
6130-00-451-9723INTERCHANGEABLE
POWER SUPPLY
408B
6625-00-982-3131INTERCHANGEABLE
OSCILLATOR,POWER AS
5815-01-133-3665INTERCHANGEABLE
TELETYPEWRITER
40/8B

Frequently Asked Questions

What is NSN 5950-00-244-8305?

NSN 5950-00-244-8305 is a Transformer,power, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-244-8305?

NSN 5950-00-244-8305 has 5 cross-referenced part numbers: 408BTRANSF0RMER (American Telephone and Telegraph Co), 408B (Lucent Technologies Inc Dba Federal Marketing Group), ES0645886 (At and T Corp), 408B (Lucent Technologies Inc Corporate Headquarters), ES0645886 (American Telephone and Telegraph Co).

What NSN replaces 5950-00-244-8305?

There are 6 known substitutes for 5950-00-244-8305: 5330-00-143-6883, 5975-00-152-1147, 5330-00-413-2581 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 408B?

Key specifications for 408B: Mounting Facility Quantity: 4 SINGLE GROUP; Winding Operating Current: 0.47 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Frequency Rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-244-8305 still in active supply?

NSN 5950-00-244-8305 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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