PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2161ATransformer,power

Lucent Technologies Inc Corporate Headquarters · NSN 5950-00-506-7999 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-506-7999 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-506-7999. Primary manufacturer part number: 2161A.
Features
  • Transformer,power — FSC 5950
  • Body Length: 0.820 INCHES MAXIMUM IN
  • Winding Operating Voltage: 1.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Body Outside Diameter: 1.020 INCHES MAXIMUM IN
  • Winding Operating Voltage: 0.10 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-506-7999, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-506-7999
Primary Part Number2161A
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Body Length0.820 INCHES MAXIMUM IN
Winding Operating Voltage1.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Body Outside Diameter1.020 INCHES MAXIMUM IN
Winding Operating Voltage0.10 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Terminal Type and Quantity4 SOLDER STUD
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity1 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-01-263-42512-381 INTERCHANGEABLE
Gasket
National Refrigeration & Air Conditioning Products Inc Dba Continental Refrigerator
3020-01-340-16422161-A INTERCHANGEABLE
Sprocket Wheel
Burch Company Inc, the
Cross-Reference Index
Part NumberManufacturer
2161ATRANSFORMER Lucent Technologies Inc Dba Federal Marketing Group (USA)
2161ATRANSF0RMER American Telephone and Telegraph Co (USA)
2161A Lucent Technologies Inc Dba Federal Marketing Group (USA)
2161A PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
2161A American Telephone and Telegraph Co (USA)
Related Parts
5330-01-263-4251INTERCHANGEABLE
GASKET
2-381
3020-01-340-1642INTERCHANGEABLE
SPROCKET WHEEL
2161-A

Frequently Asked Questions

What is NSN 5950-00-506-7999?

NSN 5950-00-506-7999 is a Transformer,power, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-506-7999?

NSN 5950-00-506-7999 has 5 cross-referenced part numbers: 2161ATRANSFORMER (Lucent Technologies Inc Dba Federal Marketing Group), 2161ATRANSF0RMER (American Telephone and Telegraph Co), 2161A (Lucent Technologies Inc Dba Federal Marketing Group), 2161A (Lucent Technologies Inc Corporate Headquarters), 2161A (American Telephone and Telegraph Co).

What NSN replaces 5950-00-506-7999?

There are 2 known substitutes for 5950-00-506-7999: 5330-01-263-4251, 3020-01-340-1642. Verify interchangeability with system specifications before substitution.

What are the specifications of 2161A?

Key specifications for 2161A: Body Length: 0.820 INCHES MAXIMUM IN; Winding Operating Voltage: 1.40 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Reliability Indicator: NOT ESTABLISHED; Body Outside Diameter: 1.020 INCHES MAXIMUM IN. 14 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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