PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4173-2Transformer,power

Honeywell International Inc. Div Aerospace - Torrance · NSN 5950-00-901-3743 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-901-3743 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-901-3743. Primary manufacturer part number: 4173-2.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
  • Body Height: 0.680 INCHES NOMINAL IN
  • Winding Operating Voltage: 24.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Current: 8.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
  • Body Length: 0.880 INCHES NOMINAL IN
  • Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-901-3743, 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 Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 22 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-901-3743
Primary Part Number4173-2
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHoneywell International Inc. Div Aerospace - Torrance
StatusACTIVE
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Body Height0.680 INCHES NOMINAL IN
Winding Operating Voltage24.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current8.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Body Length0.880 INCHES NOMINAL IN
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE GROUP IN
Inclosure TypeOPEN
Winding Function and Quantity1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Winding Operating Current16.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Distance Between Mounting Facility Centers1.060 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity2 SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current8.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current100.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Terminal Type and Quantity11 WIRE LEAD
Body Width0.830 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5365-00-129-181241732 INTERCHANGEABLE
Spacer,plate
Telemechanics Inc
3020-00-800-761641732 INTERCHANGEABLE
Sprocket Wheel
Cunico Corporation
3455-01-026-1233219C-32 EDP 15551 INTERCHANGEABLE
Cutter,milling,end
Precision Industries Inc Sharpaloy Div
4030-01-179-194241732 INTERCHANGEABLE
Hook
Acco-Babcock Inc Hoist and Crane Div
6320-01-195-5583004173-002 INTERCHANGEABLE
Panel,alarm,shipboard
Dynalec Corporation
4210-01-286-972541732 INTERCHANGEABLE
Time Delay,sprinkler
Tyco Fire Products Lp
6645-01-316-4894 INTERCHANGEABLE
Timer,interval
6210-01-425-62824173-2 INTERCHANGEABLE
Light,indicator
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
Cross-Reference Index
Part NumberManufacturer
4173-2 PRIMARY Honeywell International Inc. Div Aerospace - Torrance (USA)
4173-2 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
Related Parts
5365-00-129-1812INTERCHANGEABLE
SPACER,PLATE
41732
3020-00-800-7616INTERCHANGEABLE
SPROCKET WHEEL
41732
3455-01-026-1233INTERCHANGEABLE
CUTTER,MILLING,END
219C-32 EDP 15551
4030-01-179-1942INTERCHANGEABLE
HOOK
41732
6320-01-195-5583INTERCHANGEABLE
PANEL,ALARM,SHIPBOARD
004173-002
4210-01-286-9725INTERCHANGEABLE
TIME DELAY,SPRINKLER
41732
6645-01-316-4894INTERCHANGEABLE
TIMER,INTERVAL
6210-01-425-6282INTERCHANGEABLE
LIGHT,INDICATOR
4173-2

Frequently Asked Questions

What is NSN 5950-00-901-3743?

NSN 5950-00-901-3743 is a Transformer,power, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-901-3743?

NSN 5950-00-901-3743 has 2 cross-referenced part numbers: 4173-2 (Honeywell International Inc. Div Aerospace - Torrance), 4173-2 (Alliedsignal Inc Dba Allied-Signal Aerospace Co).

What NSN replaces 5950-00-901-3743?

There are 8 known substitutes for 5950-00-901-3743: 5365-00-129-1812, 3020-00-800-7616, 3455-01-026-1233 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4173-2?

Key specifications for 4173-2: Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY; Body Height: 0.680 INCHES NOMINAL IN; Winding Operating Voltage: 24.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY; Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY. 22 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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