PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T101Transformer,power

Itt Telecom Products Corp Network Systems Div · NSN 5950-00-645-4889 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-4889 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-4889. Primary manufacturer part number: T101.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Length: 7.000 INCHES NOMINAL IN
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 6.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: OPEN
  • Winding Operating Voltage: 440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-4889, 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 Itt Telecom Products Corp Network Systems Div. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN5950-00-645-4889
Primary Part NumberT101
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerItt Telecom Products Corp Network Systems Div
StatusACTIVE
Winding Operating Voltage250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Length7.000 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length6.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeOPEN
Winding Operating Voltage440.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Body Width4.750 INCHES NOMINAL IN
Body Height6.000 INCHES NOMINAL IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity6 TAB, SOLDER LUG
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current700.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width3.875 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-117-0754 INTERCHANGEABLE
Bearing,roller,thrust
5950-00-197-5157 INTERCHANGEABLE
Transformer,radio Frequency
5136-00-199-6747T101 INTERCHANGEABLE
Tap,thread Cutting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
4320-00-230-3021SB-2417-1 INTERCHANGEABLE
Pump,hydraulic Ram,hand Driven
Control Systems Co
5307-00-419-40670T0101 INTERCHANGEABLE
Stud,plain
Caterpillar Inc Div Caterpillar Defense
3010-00-420-9940T10-1 INTERCHANGEABLE
Coupling,shaft,flexible
Roller Bearing Co of America, Inc Div Pic Design
5950-00-645-5236T101 INTERCHANGEABLE
Transformer,audio Frequency
Electronic Transformer Corp Div Electronic Transformer Corporation
5120-00-831-7092T10-1 INTERCHANGEABLE
Drift,magnet Positi
Woodward Hrt Inc
2590-00-851-7533TG1 INTERCHANGEABLE
Cap,filler Opening
Stant Mfg Co Inc
5935-00-897-6386 INTERCHANGEABLE
Dummy Plug,telephone
Cross-Reference Index
Part NumberManufacturer
T101 Itt Telecom Products Corp Network Systems Div (USA)
6500101 Itt Telecom Products Corp Network Systems Div (USA)
6020674 Itt Telecom Products Corp Network Systems Div (USA)
Related Parts
3110-00-117-0754INTERCHANGEABLE
BEARING,ROLLER,THRUST
5950-00-197-5157INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5136-00-199-6747INTERCHANGEABLE
TAP,THREAD CUTTING
T101
4320-00-230-3021INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
SB-2417-1
5307-00-419-4067INTERCHANGEABLE
STUD,PLAIN
0T0101
3010-00-420-9940INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
T10-1
5950-00-645-5236INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
T101
5120-00-831-7092INTERCHANGEABLE
DRIFT,MAGNET POSITI
T10-1
2590-00-851-7533INTERCHANGEABLE
CAP,FILLER OPENING
TG1
5935-00-897-6386INTERCHANGEABLE
DUMMY PLUG,TELEPHONE
5120-01-072-2950INTERCHANGEABLE
ADAPTER,SOCKET WRENCH
T-101
4940-01-280-9106INTERCHANGEABLE
AUGER MACHINE,PIPE AND SEWER,POW
T-101

Frequently Asked Questions

What is NSN 5950-00-645-4889?

NSN 5950-00-645-4889 is a Transformer,power, manufactured by Itt Telecom Products Corp Network Systems Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-4889?

NSN 5950-00-645-4889 has 3 cross-referenced part numbers: T101 (Itt Telecom Products Corp Network Systems Div), 6500101 (Itt Telecom Products Corp Network Systems Div), 6020674 (Itt Telecom Products Corp Network Systems Div).

What NSN replaces 5950-00-645-4889?

There are 12 known substitutes for 5950-00-645-4889: 3110-00-117-0754, 5950-00-197-5157, 5136-00-199-6747 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T101?

Key specifications for T101: Winding Operating Voltage: 250.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Body Length: 7.000 INCHES NOMINAL IN; Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT. 17 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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