PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

277541Transformer,power

Honeywell International Inc. Div Aerospace - Torrance · NSN 5950-00-903-9869 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-903-9869 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-903-9869. Primary manufacturer part number: 277541.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Winding Operating Voltage: 26.50 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Distance Between Mounting Facility Centers: 1.010 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Height: 1.830 INCHES NOMINAL IN
  • Winding Operating Current: 4.9 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-903-9869, 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 4 commercial cross-references from 3 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
NSN5950-00-903-9869
Primary Part Number277541
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHoneywell International Inc. Div Aerospace - Torrance
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Winding Operating Voltage26.50 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Distance Between Mounting Facility Centers1.010 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height1.830 INCHES NOMINAL IN
Winding Operating Current4.9 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Thread Quantity Per Inch40 SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Winding Operating Voltage4.90 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current12.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Length1.000 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Winding Operating Current26.5 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Terminal Type and Quantity11 PIN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Width1.000 INCHES NOMINAL IN
Frequency Rating360.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2530-00-339-5405F13387 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
2915-00-675-0157540785 INTERCHANGEABLE
Fuel Control,afterburner,turbine
Hamilton Sundstrand Corporation Dba Collins Aerospace
5950-00-990-144513387 INTERCHANGEABLE
Transformer,power
Robert M. Hadley Company, Inc.
5950-01-029-0832990-504-91 INTERCHANGEABLE
Transformer,power
Ametek Programmable Power, Inc.
5998-01-577-374936728-00 INTERCHANGEABLE
Printed Circuit Board
Haemonetics Corporation
1560-01-648-01852-7754-1 INTERCHANGEABLE
Rib,airfoil
The Boeing Company Div Defense
5315-01-678-474113387 INTERCHANGEABLE
Pin,straight,headed
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
5120-01-714-699313387 INTERCHANGEABLE
Key Set,socket Head Screw
Bondhus Corp
Cross-Reference Index
Part NumberManufacturer
13387 Robert M. Hadley Company, Inc. (USA)
277541 PRIMARY Honeywell International Inc. Div Aerospace - Torrance (USA)
277541 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
277541 Robert M. Hadley Company, Inc. (USA)
Related Parts
2530-00-339-5405INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
F13387
2915-00-675-0157INTERCHANGEABLE
FUEL CONTROL,AFTERBURNER,TURBINE
540785
5950-00-990-1445INTERCHANGEABLE
TRANSFORMER,POWER
13387
5950-01-029-0832INTERCHANGEABLE
TRANSFORMER,POWER
990-504-91
5998-01-577-3749INTERCHANGEABLE
PRINTED CIRCUIT BOARD
36728-00
1560-01-648-0185INTERCHANGEABLE
RIB,AIRFOIL
2-7754-1
5315-01-678-4741INTERCHANGEABLE
PIN,STRAIGHT,HEADED
13387
5120-01-714-6993INTERCHANGEABLE
KEY SET,SOCKET HEAD SCREW
13387

Frequently Asked Questions

What is NSN 5950-00-903-9869?

NSN 5950-00-903-9869 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 5950-00-903-9869?

NSN 5950-00-903-9869 has 4 cross-referenced part numbers: 13387 (Robert M. Hadley Company, Inc.), 277541 (Honeywell International Inc. Div Aerospace - Torrance), 277541 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 277541 (Robert M. Hadley Company, Inc.).

What NSN replaces 5950-00-903-9869?

There are 8 known substitutes for 5950-00-903-9869: 2530-00-339-5405, 2915-00-675-0157, 5950-00-990-1445 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 277541?

Key specifications for 277541: Reliability Indicator: NOT ESTABLISHED; Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY; Mounting Method: THREADED STUD(S) SINGLE GROUP; Winding Operating Voltage: 26.50 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY. 22 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com