PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

669948Transformer,power

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5950-00-518-0697 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-518-0697 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-518-0697. Primary manufacturer part number: 669948.
Features
  • Transformer,power — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Body Width: 1.812 INCHES NOMINAL IN
  • Winding Operating Current: 6.3 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-518-0697, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-518-0697
Primary Part Number669948
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Mounting Facility Quantity4 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Body Width1.812 INCHES NOMINAL IN
Winding Operating Current6.3 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height3.125 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Terminal Type and Quantity4 STANDOFF INSULATOR
Body Length2.125 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Frequency Rating380.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5995-00-122-166543419 INTERCHANGEABLE
Cable Assembly,power,electrical
Unison Industries Llc
2815-00-146-2864 INTERCHANGEABLE
Adapter
3110-00-411-1770BACB10A659A INTERCHANGEABLE
Bearing,ball,airframe
Mpb Corp Div Timken Super Precision
5120-00-567-3710583-3 INTERCHANGEABLE
Assy Tool,detachabl
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
4920-00-783-86235833 INTERCHANGEABLE
Plate,mounting,hose Hanger
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
5330-00-919-1320 INTERCHANGEABLE
Gasket
5935-00-957-7807 INTERCHANGEABLE
Cover,electrical Connector
5910-01-031-0446 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
6105-01-361-5412E9149 INTERCHANGEABLE
Motor,alternating Current
General Electric Co Motor Business Group
4810-01-373-808643419 INTERCHANGEABLE
Disk,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
43419 Freed Transformer Co (USA)
669948 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
W-1990 Cen Electronics a Div of Chloride Power Electronics Inc (USA)
5833 Precision Electronics, Inc (USA)
Related Parts
5995-00-122-1665INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
43419
2815-00-146-2864INTERCHANGEABLE
ADAPTER
3110-00-411-1770INTERCHANGEABLE
BEARING,BALL,AIRFRAME
BACB10A659A
5120-00-567-3710INTERCHANGEABLE
ASSY TOOL,DETACHABL
583-3
4920-00-783-8623INTERCHANGEABLE
PLATE,MOUNTING,HOSE HANGER
5833
5330-00-919-1320INTERCHANGEABLE
GASKET
5935-00-957-7807INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
5910-01-031-0446INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
6105-01-361-5412INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
E9149
4810-01-373-8086INTERCHANGEABLE
DISK,VALVE
43419
6515-01-387-4107INTERCHANGEABLE
SPLINT,WRIST AND THUMB
2970003647
5950-01-481-1068INTERCHANGEABLE
TRANSFORMER,CURRENT
ET-00031-002

Frequently Asked Questions

What is NSN 5950-00-518-0697?

NSN 5950-00-518-0697 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-518-0697?

NSN 5950-00-518-0697 has 4 cross-referenced part numbers: 43419 (Freed Transformer Co), 669948 (Lockheed Martin Corporation Div Rms - Mitchel Field), W-1990 (Cen Electronics a Div of Chloride Power Electronics Inc), 5833 (Precision Electronics, Inc).

What NSN replaces 5950-00-518-0697?

There are 12 known substitutes for 5950-00-518-0697: 5995-00-122-1665, 2815-00-146-2864, 3110-00-411-1770 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 669948?

Key specifications for 669948: Mounting Facility Quantity: 4 SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP; Body Width: 1.812 INCHES NOMINAL IN; Winding Operating Current: 6.3 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-518-0697 still in active supply?

NSN 5950-00-518-0697 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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