PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST5M1440-003Transformer,audio Frequency

The Boeing Company Div Defense · NSN 5950-01-049-5805 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-049-5805 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-049-5805. Primary manufacturer part number: ST5M1440-003.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: HERMETICALLY SEALED
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Distance Between Mounting Facility Centers: 0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Outside Diameter: 1.062 INCHES MAXIMUM IN
  • Impedance Rating in Ohms: 300.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-049-5805, 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 The Boeing Company Div Defense. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-049-5805
Primary Part NumberST5M1440-003
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Distance Between Mounting Facility Centers0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Outside Diameter1.062 INCHES MAXIMUM IN
Impedance Rating in Ohms300.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity4 WIRE HOOK
Body Length1.375 INCHES MAXIMUM IN
Frequency Rating350.0 HERTZ MINIMUM AND 2.5 KILOHERTZ MAXIMUM SINGLE COMPONENT
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Impedance Rating in Ohms6000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Primary to Secondary Turn Ratio1 TO 3 SINGLE COMPONENT
Maximum Transformer Power Rating250.0 MILLIWATTS SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5940-00-056-9873 INTERCHANGEABLE
Splice,conductor
3455-00-204-167719639 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5895-00-228-5221 INTERCHANGEABLE
Module,indicator
3010-00-404-178926014 INTERCHANGEABLE
Coupling,shaft,flexible
Senior Operations Llc Dba Metal Bellows Div Metal Bellows
4720-01-090-16752601-4 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5331-01-123-236226-014 INTERCHANGEABLE
O-Ring
Ortman Fluid Power Quincy Compressor Div Sub of Coltec Industries Inc
3120-01-189-384126014 INTERCHANGEABLE
Bushing,sleeve
Moog Inc. Dba Ampac-Isp Corp
3040-01-394-5907 INTERCHANGEABLE
Brake Band and Lining
6680-01-496-983726014 INTERCHANGEABLE
Switch,liquid Level
Johnson Pump of America
1650-01-656-640126014 INTERCHANGEABLE
Head,linear Actuating Cylinder
Honeywell International Inc. Div Aerospace - Torrance
Cross-Reference Index
Part NumberManufacturer
ST5M1440-003 PRIMARY The Boeing Company Div Defense (USA)
5124A03 Technitrol, Inc. Dba Pulse Div Military/aerospace (USA)
5124A03 Inrcore, Llc Div Inrcore (USA)
26014 Torotel, Inc. Div Torotel Products, Inc. (USA)
C-33910-3 Sci Systems Inc (USA)
Related Parts
5940-00-056-9873INTERCHANGEABLE
SPLICE,CONDUCTOR
3455-00-204-1677INTERCHANGEABLE
REAMER,MACHINE
19639
5895-00-228-5221INTERCHANGEABLE
MODULE,INDICATOR
3010-00-404-1789INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
26014
4720-01-090-1675INTERCHANGEABLE
HOSE,NONMETALLIC
2601-4
5331-01-123-2362INTERCHANGEABLE
O-RING
26-014
3120-01-189-3841INTERCHANGEABLE
BUSHING,SLEEVE
26014
3040-01-394-5907INTERCHANGEABLE
BRAKE BAND AND LINING
6680-01-496-9837INTERCHANGEABLE
SWITCH,LIQUID LEVEL
26014
1650-01-656-6401INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
26014

Frequently Asked Questions

What is NSN 5950-01-049-5805?

NSN 5950-01-049-5805 is a Transformer,audio Frequency, manufactured by The Boeing Company Div Defense, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-049-5805?

NSN 5950-01-049-5805 has 5 cross-referenced part numbers: ST5M1440-003 (The Boeing Company Div Defense), 5124A03 (Technitrol, Inc. Dba Pulse Div Military/aerospace), 5124A03 (Inrcore, Llc Div Inrcore), 26014 (Torotel, Inc. Div Torotel Products, Inc.), C-33910-3 (Sci Systems Inc).

What NSN replaces 5950-01-049-5805?

There are 10 known substitutes for 5950-01-049-5805: 5940-00-056-9873, 3455-00-204-1677, 5895-00-228-5221 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ST5M1440-003?

Key specifications for ST5M1440-003: Reliability Indicator: NOT ESTABLISHED; Inclosure Type: HERMETICALLY SEALED; Mounting Facility Quantity: 2 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 17 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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