PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

939D198-1Transformer,current

Hamilton Sundstrand Corporation · NSN 5950-00-912-5872 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-912-5872 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-912-5872. Primary manufacturer part number: 939D198-1.
Features
  • Transformer,current — FSC 5950
  • Body Height: 2.820 INCHES NOMINAL IN
  • Winding Operating Current: 320.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Voltage: 1.50 AC KILOVOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Current: 383.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Body Length: 5.350 INCHES NOMINAL IN
  • Body Width: 3.080 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,current, cataloged under National Stock Number 5950-00-912-5872, 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 Hamilton Sundstrand Corporation. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5950-00-912-5872
Primary Part Number939D198-1
Item NameTransformer,current
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Body Height2.820 INCHES NOMINAL IN
Winding Operating Current320.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage1.50 AC KILOVOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Current383.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Length5.350 INCHES NOMINAL IN
Body Width3.080 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 SECONDARY SINGLE COMPONENT
Distance Between Mounting Facility Centers4.160 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Installation for Which DesignedINDOOR NONPORTABLE
Inclosure TypeFULLY INCLOSED
Frequency Rating400.0 HERTZ MAXIMUM SINGLE COMPONENT
Terminal Type and Quantity2 TAB, SOLDER LUG
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5133-00-227-5992 INTERCHANGEABLE
Drill,twist
3040-00-640-3744A3507E INTERCHANGEABLE
Lining,friction
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5310-00-781-688442228 INTERCHANGEABLE
Nut,plain,round
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
2530-00-847-3444297705R92 INTERCHANGEABLE
Brake Shoe
Dressta North America Ltd
5865-00-883-1196 INTERCHANGEABLE
Control Indicator
5999-01-159-2500162LG27P1 INTERCHANGEABLE
Heater,thermal Release
General Electric Company
5995-01-170-879042228 INTERCHANGEABLE
Cable Assembly,special Purpose,e
U S Dept of Transportation Federal Aviation Administration
4210-01-311-097742228 INTERCHANGEABLE
Hose Assembly,nonmetallic,fire F
Tyco Fire Products Lp
4820-01-414-7983N42228 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
939D198-1 PRIMARY Hamilton Sundstrand Corporation (USA)
939D198-1 Sundstrand Corp Electric Power Systems Div (USA)
42228 Coast/advanced Chip Magnetics, Inc. (USA)
939D198-1 Westinghouse Electric Corp (USA)
Related Parts
5133-00-227-5992INTERCHANGEABLE
DRILL,TWIST
3040-00-640-3744INTERCHANGEABLE
LINING,FRICTION
A3507E
5310-00-781-6884INTERCHANGEABLE
NUT,PLAIN,ROUND
42228
2530-00-847-3444INTERCHANGEABLE
BRAKE SHOE
297705R92
5865-00-883-1196INTERCHANGEABLE
CONTROL INDICATOR
5999-01-159-2500INTERCHANGEABLE
HEATER,THERMAL RELEASE
162LG27P1
5995-01-170-8790INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
42228
4210-01-311-0977INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC,FIRE F
42228
4820-01-414-7983INTERCHANGEABLE
CAP,VALVE
N42228

Frequently Asked Questions

What is NSN 5950-00-912-5872?

NSN 5950-00-912-5872 is a Transformer,current, manufactured by Hamilton Sundstrand Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-912-5872?

NSN 5950-00-912-5872 has 4 cross-referenced part numbers: 939D198-1 (Hamilton Sundstrand Corporation), 939D198-1 (Sundstrand Corp Electric Power Systems Div), 42228 (Coast/advanced Chip Magnetics, Inc.), 939D198-1 (Westinghouse Electric Corp).

What NSN replaces 5950-00-912-5872?

There are 9 known substitutes for 5950-00-912-5872: 5133-00-227-5992, 3040-00-640-3744, 5310-00-781-6884 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 939D198-1?

Key specifications for 939D198-1: Body Height: 2.820 INCHES NOMINAL IN; Special Features: PRIMARY RATED BUT NOT INCLUDED; Winding Operating Current: 320.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Winding Operating Voltage: 1.50 AC KILOVOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY. 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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