PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

603999Transformer,power

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5950-00-829-5484 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-829-5484 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-829-5484. Primary manufacturer part number: 603999.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: FULLY INCLOSED
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Body Length: 2.093 INCHES MAXIMUM IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-829-5484, 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 6 commercial cross-references from 5 manufacturers, 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
NSN5950-00-829-5484
Primary Part Number603999
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Length2.093 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Current35.0 MILLIAMPERES DC MAXIMUM AND 70.0 MILLIAMPERES DC MAXIMUM AND 370.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity14 WIRE LOOP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Length1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current8.5 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Body Height1.718 INCHES MAXIMUM IN
Body Width2.031 INCHES MAXIMUM IN
Winding Operating Voltage300.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-056-35763426 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
5910-00-161-6395A18181-503 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Raytheon Company Dba Raytheon Co
5935-00-173-836910-042214-02P INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corp Div Amphenol Aerospace Operations
6810-00-233-0124 INTERCHANGEABLE
Silver Nitrate
6810-00-233-0126 INTERCHANGEABLE
Silver Nitrate
4330-00-264-0790 INTERCHANGEABLE
Ring,control,fluid Flow
1630-00-404-08533426 INTERCHANGEABLE
Bell Crank,tail Whe
Textron Aviation Inc
5940-00-549-7258342-144 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5120-00-595-8637 INTERCHANGEABLE
Nutdriver
6505-01-216-1623NDC00555-0030-05 INTERCHANGEABLE
Colchicine Tablets
Barr Laboratories, Inc. Dba Barr Laboratories, Inc Inc
Cross-Reference Index
Part NumberManufacturer
603999 Honeywell International Inc. Dba Honeywell International (USA)
44670 Freed Transformer Co (USA)
603999 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
PEI3426 Precision Electronics, Inc (USA)
3426 Precision Electronics, Inc (USA)
603999 Rayco Electronic Manufacturing, Inc. Div Rayco Electronics Mfg Inc (USA)
Related Parts
5975-00-056-3576INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3426
5910-00-161-6395INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
A18181-503
5935-00-173-8369INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
10-042214-02P
6810-00-233-0124INTERCHANGEABLE
SILVER NITRATE
6810-00-233-0126INTERCHANGEABLE
SILVER NITRATE
4330-00-264-0790INTERCHANGEABLE
RING,CONTROL,FLUID FLOW
1630-00-404-0853INTERCHANGEABLE
BELL CRANK,TAIL WHE
3426
5940-00-549-7258INTERCHANGEABLE
TERMINAL,LUG
342-144
5120-00-595-8637INTERCHANGEABLE
NUTDRIVER
6505-01-216-1623INTERCHANGEABLE
COLCHICINE TABLETS
NDC00555-0030-05
5935-01-361-8742INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
3426
5945-01-392-5880INTERCHANGEABLE
RELAY,ROTARY
603-999

Frequently Asked Questions

What is NSN 5950-00-829-5484?

NSN 5950-00-829-5484 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-829-5484?

NSN 5950-00-829-5484 has 6 cross-referenced part numbers: 603999 (Honeywell International Inc. Dba Honeywell International), 44670 (Freed Transformer Co), 603999 (Lockheed Martin Corporation Div Rms - Mitchel Field), PEI3426 (Precision Electronics, Inc), 3426 (Precision Electronics, Inc) and 1 more.

What NSN replaces 5950-00-829-5484?

There are 12 known substitutes for 5950-00-829-5484: 5975-00-056-3576, 5910-00-161-6395, 5935-00-173-8369 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 603999?

Key specifications for 603999: Reliability Indicator: NOT ESTABLISHED; Inclosure Type: FULLY INCLOSED; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN; Body Length: 2.093 INCHES MAXIMUM IN. 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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