PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31503Transformer,audio Frequency

Raytheon Company Dba Raytheon · NSN 5950-00-538-1738 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-538-1738 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-538-1738. Primary manufacturer part number: 31503.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Distance Between Mounting Facility Centers: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • Body Height: 2.250 INCHES NOMINAL IN
  • Inclosure Type: HERMETICALLY SEALED
  • Impedance Rating in Ohms: 250.0 NOMINAL AND 600.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Body Length: 1.188 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-538-1738, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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
NSN5950-00-538-1738
Primary Part Number31503
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Distance Between Mounting Facility Centers1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Body Height2.250 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Impedance Rating in Ohms250.0 NOMINAL AND 600.0 NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Length1.188 INCHES NOMINAL IN
Thread Quantity Per Inch32 SINGLE GROUP
Body Width1.062 INCHES NOMINAL IN
Impedance Rating in Ohms62.5 NOMINAL AND 150.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Terminal Type and Quantity9 SOLDER STUD
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Frequency Rating20.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Maximum Transformer Power Rating10.0 DECIBELS SINGLE COMPONENT
Impedance Rating in Ohms15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5930-00-486-8897002955-3 INTERCHANGEABLE
Switch,thermostatic
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
5940-00-534-0991 INTERCHANGEABLE
Terminal,lug
5340-01-655-6160 INTERCHANGEABLE
Clamp,synchro
Cross-Reference Index
Part NumberManufacturer
B31503 El-Tronics Inc Solar Electric Div (USA)
HS60 Magnetek Inc Lighting Products Group (USA)
HS60 Magnetek Inc Huntington Div (USA)
7472480PT1 General Electric Company (USA)
31503 PRIMARY Raytheon Company Dba Raytheon (USA)
Z16102 Inrcore, Llc Div Inrcore (USA)
Related Parts
5930-00-486-8897INTERCHANGEABLE
SWITCH,THERMOSTATIC
002955-3
5940-00-534-0991INTERCHANGEABLE
TERMINAL,LUG
5340-01-655-6160INTERCHANGEABLE
CLAMP,SYNCHRO

Frequently Asked Questions

What is NSN 5950-00-538-1738?

NSN 5950-00-538-1738 is a Transformer,audio Frequency, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-538-1738?

NSN 5950-00-538-1738 has 6 cross-referenced part numbers: B31503 (El-Tronics Inc Solar Electric Div), HS60 (Magnetek Inc Lighting Products Group), HS60 (Magnetek Inc Huntington Div), 7472480PT1 (General Electric Company), 31503 (Raytheon Company Dba Raytheon) and 1 more.

What NSN replaces 5950-00-538-1738?

There are 3 known substitutes for 5950-00-538-1738: 5930-00-486-8897, 5940-00-534-0991, 5340-01-655-6160. Verify interchangeability with system specifications before substitution.

What are the specifications of 31503?

Key specifications for 31503: Reliability Indicator: NOT ESTABLISHED; Distance Between Mounting Facility Centers: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT; Body Height: 2.250 INCHES NOMINAL IN. 19 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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