PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

307MC0ILTransformer,power

At and T Corp · NSN 5950-00-647-7521 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-647-7521 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-647-7521. Primary manufacturer part number: 307MC0IL.
Features
  • Transformer,power — FSC 5950
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Operating Voltage: 10.40 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Body Length: 3.188 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-647-7521, 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 At and T Corp. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-647-7521
Primary Part Number307MC0IL
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAt and T Corp
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage10.40 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Body Length3.188 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length2.812 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage6.40 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Current4.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Body Width2.625 INCHES NOMINAL IN
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Terminal Type and Quantity8 WIRE HOOK
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Operating Voltage110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Height3.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5910-00-543-0607 INTERCHANGEABLE
Capacitor,variable,mica Dielectr
3110-00-554-5967307 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3110-01-311-2086307M INTERCHANGEABLE
Bearing
Skf Usa Inc
Cross-Reference Index
Part NumberManufacturer
307MC0IL At and T Corp (USA)
307M American Telephone and Telegraph Co (USA)
GA52597 American Telephone and Telegraph Co (USA)
307M Lucent Technologies Inc Corporate Headquarters (USA)
307MC0IL Omega Associates, Inc. Dba Omega Associates Inc (USA)
1228723 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
307M Lucent Technologies Inc Dba Federal Marketing Group (USA)
GA52597 Lucent Technologies Inc Dba Federal Marketing Group (USA)
GA52597 Lucent Technologies Inc Corporate Headquarters (USA)
GA52597 At and T Corp (USA)
59T11C1049 Omega Associates, Inc. Dba Omega Associates Inc (USA)
Related Parts
5910-00-543-0607INTERCHANGEABLE
CAPACITOR,VARIABLE,MICA DIELECTR
3110-00-554-5967INTERCHANGEABLE
BEARING,BALL,ANNULAR
307
3110-01-311-2086INTERCHANGEABLE
BEARING
307M

Frequently Asked Questions

What is NSN 5950-00-647-7521?

NSN 5950-00-647-7521 is a Transformer,power, manufactured by At and T Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-647-7521?

NSN 5950-00-647-7521 has 11 cross-referenced part numbers: 307MC0IL (At and T Corp), 307M (American Telephone and Telegraph Co), GA52597 (American Telephone and Telegraph Co), 307M (Lucent Technologies Inc Corporate Headquarters), 307MC0IL (Omega Associates, Inc. Dba Omega Associates Inc) and 6 more.

What NSN replaces 5950-00-647-7521?

There are 3 known substitutes for 5950-00-647-7521: 5910-00-543-0607, 3110-00-554-5967, 3110-01-311-2086. Verify interchangeability with system specifications before substitution.

What are the specifications of 307MC0IL?

Key specifications for 307MC0IL: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT; Winding Operating Voltage: 10.40 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY. 23 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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