PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1226337Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-557-6879 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-557-6879 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-557-6879. Primary manufacturer part number: 1226337.
Features
  • Transformer,power — FSC 5950
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 1.562 INCHES NOMINAL IN
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.250 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 5950-00-557-6879, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-557-6879
Primary Part Number1226337
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Body Width1.562 INCHES NOMINAL IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Height2.562 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage15.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Length1.938 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current200.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width0.938 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6145-01-514-458686173 INTERCHANGEABLE
Cable,power,electrical
Prysmian Cables and Systems Usa Llc Div Corporate
Cross-Reference Index
Part NumberManufacturer
86-173 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1226337 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6145-01-514-4586INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
86173

Frequently Asked Questions

What is NSN 5950-00-557-6879?

NSN 5950-00-557-6879 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-557-6879?

NSN 5950-00-557-6879 has 2 cross-referenced part numbers: 86-173 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1226337 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5950-00-557-6879?

There is 1 known substitute for 5950-00-557-6879: 6145-01-514-4586. Verify interchangeability with system specifications before substitution.

What are the specifications of 1226337?

Key specifications for 1226337: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Mounting Method: THREADED STUD(S) SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED. 20 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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