PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

984540-18Transformer,power

Raytheon Company Dba Raytheon · NSN 5950-00-646-5509 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-646-5509 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-646-5509. Primary manufacturer part number: 984540-18.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Body Height: 4.160 INCHES NOMINAL IN
  • Body Width: 1.780 INCHES NOMINAL IN
  • Terminal Type and Quantity: 15 TAB, SOLDER LUG
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-646-5509, 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 Raytheon Company Dba Raytheon. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-646-5509
Primary Part Number984540-18
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Height4.160 INCHES NOMINAL IN
Body Width1.780 INCHES NOMINAL IN
Terminal Type and Quantity15 TAB, SOLDER LUG
Mounting Facility Quantity4 SINGLE GROUP
Body Length3.020 INCHES NOMINAL IN
Winding Operating Voltage200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage25.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Current2.63 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2815-00-146-2380 INTERCHANGEABLE
Housing
5325-00-263-5917 INTERCHANGEABLE
Ring,retaining
5330-00-285-944104244A INTERCHANGEABLE
Seal,plain Encased
Cnh Industrial America Llc Dba Cnh America
6240-00-372-4785825 INTERCHANGEABLE
Lamp,incandescent
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
6640-00-764-7471 INTERCHANGEABLE
Funnel,common,laboratory
5120-01-173-62516180 INTERCHANGEABLE
Adapter,torque Wrench
Wta Tool Llc
5331-01-334-03656180 INTERCHANGEABLE
O-Ring
Pdi Ground Support Systems, Inc.
5120-01-631-6042TP543 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
8340-01-669-16366180 INTERCHANGEABLE
Bracket,tent Frame
Uts Systems Llc
Cross-Reference Index
Part NumberManufacturer
984540-18 Raytheon Company Dba Raytheon (USA)
TP543 North Erie Electronics, Inc Dba Fisher Engineering (USA)
6180 Altec Lansing Corp Sound Products Div (USA)
Related Parts
2815-00-146-2380INTERCHANGEABLE
HOUSING
5325-00-263-5917INTERCHANGEABLE
RING,RETAINING
5330-00-285-9441INTERCHANGEABLE
SEAL,PLAIN ENCASED
04244A
6240-00-372-4785INTERCHANGEABLE
LAMP,INCANDESCENT
825
6640-00-764-7471INTERCHANGEABLE
FUNNEL,COMMON,LABORATORY
5120-01-173-6251INTERCHANGEABLE
ADAPTER,TORQUE WRENCH
6180
5331-01-334-0365INTERCHANGEABLE
O-RING
6180
5120-01-631-6042INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
TP543
8340-01-669-1636INTERCHANGEABLE
BRACKET,TENT FRAME
6180

Frequently Asked Questions

What is NSN 5950-00-646-5509?

NSN 5950-00-646-5509 is a Transformer,power, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-646-5509?

NSN 5950-00-646-5509 has 3 cross-referenced part numbers: 984540-18 (Raytheon Company Dba Raytheon), TP543 (North Erie Electronics, Inc Dba Fisher Engineering), 6180 (Altec Lansing Corp Sound Products Div).

What NSN replaces 5950-00-646-5509?

There are 9 known substitutes for 5950-00-646-5509: 2815-00-146-2380, 5325-00-263-5917, 5330-00-285-9441 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 984540-18?

Key specifications for 984540-18: Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN; Body Height: 4.160 INCHES NOMINAL IN. 18 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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