PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18856-2Transformer,power Autotransforme

Robert M. Hadley Company, Inc. · NSN 5950-01-181-1754 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-181-1754 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-181-1754. Primary manufacturer part number: 18856-2.
Features
  • Transformer,power Autotransforme — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 4 SOLDER STUD
  • Inclosure Type: FULLY INCLOSED
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
  • Winding Operating Voltage: 13.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
  • Frequency Rating: 25.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power Autotransforme, cataloged under National Stock Number 5950-01-181-1754, 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 Robert M. Hadley Company, Inc.. Government technical data includes 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-181-1754
Primary Part Number18856-2
Item NameTransformer,power Autotransforme
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRobert M. Hadley Company, Inc.
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity4 SOLDER STUD
Inclosure TypeFULLY INCLOSED
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY, FIXED AUTOTRANSFORMER TYPE SINGLE COMPONENT
Winding Operating Voltage13.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Frequency Rating25.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current16.0 AMPERES DC NOMINAL SINGLE COMPONENT SINGLE PRIMARY OUTPUT
Distance Between Mounting Facility Centers1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Operating Temp155.0 CELSIUS DEGC
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-052-59976100303 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Whippany Actuation Systems, Llc
5330-00-323-931511147 INTERCHANGEABLE
Gasket
Morris Material Handling, Inc.
3030-00-528-4634 INTERCHANGEABLE
Belt,v
6110-00-557-7426188562 INTERCHANGEABLE
Regulator,voltage
Raytheon Company Dba Raytheon
5325-00-798-775510947266 INTERCHANGEABLE
Insert,screw Thread
U S Army Tank Automotive Command Amsta-Im-Mm
5120-00-902-0093510002303N INTERCHANGEABLE
Hammer,hand
National Industries for the Blind
5310-01-068-2238 INTERCHANGEABLE
Washer,flat
3110-01-281-343110252071-1 INTERCHANGEABLE
Bearing,ball,annular
Kaydon Corporation Dba Kaydon Corp
5962-01-322-0177188562 INTERCHANGEABLE
Microckt,prom,speci
Northrop Grumman Systems Corporation
5331-01-565-815611147A INTERCHANGEABLE
O-Ring
Harley Davidson Motor Co Inc
Cross-Reference Index
Part NumberManufacturer
WE-3366 Magnetika Inc (USA)
11147 Sora Power Inc. Dba Sigma Division (USA)
18856-2 PRIMARY Robert M. Hadley Company, Inc. (USA)
865406-0001 Litton Systems Inc. Div Navigation Systems Division (USA)
13245 Magnespec Inc (USA)
WE-3366 Wems Electronics Transformer Group (USA)
Related Parts
5905-00-052-5997INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
6100303
5330-00-323-9315INTERCHANGEABLE
GASKET
11147
3030-00-528-4634INTERCHANGEABLE
BELT,V
6110-00-557-7426INTERCHANGEABLE
REGULATOR,VOLTAGE
188562
5325-00-798-7755INTERCHANGEABLE
INSERT,SCREW THREAD
10947266
5120-00-902-0093INTERCHANGEABLE
HAMMER,HAND
510002303N
5310-01-068-2238INTERCHANGEABLE
WASHER,FLAT
3110-01-281-3431INTERCHANGEABLE
BEARING,BALL,ANNULAR
10252071-1
5962-01-322-0177INTERCHANGEABLE
MICROCKT,PROM,SPECI
188562
5331-01-565-8156INTERCHANGEABLE
O-RING
11147A
4320-01-565-8830INTERCHANGEABLE
REPAIR KIT,PUMPING ASSEMBLY
11147
3010-01-711-1465INTERCHANGEABLE
CLUTCH ASSEMBLY,FRICTION
13245

Frequently Asked Questions

What is NSN 5950-01-181-1754?

NSN 5950-01-181-1754 is a Transformer,power Autotransforme, manufactured by Robert M. Hadley Company, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-181-1754?

NSN 5950-01-181-1754 has 6 cross-referenced part numbers: WE-3366 (Magnetika Inc), 11147 (Sora Power Inc. Dba Sigma Division), 18856-2 (Robert M. Hadley Company, Inc.), 865406-0001 (Litton Systems Inc. Div Navigation Systems Division), 13245 (Magnespec Inc) and 1 more.

What NSN replaces 5950-01-181-1754?

There are 12 known substitutes for 5950-01-181-1754: 5905-00-052-5997, 5330-00-323-9315, 3030-00-528-4634 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18856-2?

Key specifications for 18856-2: Overall Width: 1.130 INCHES MAXIMUM IN; Reliability Indicator: NOT ESTABLISHED; Overall Length: 1.870 INCHES MINIMUM AND 1.930 INCHES MAXIMUM IN; Overall Height: 1.600 INCHES MAXIMUM IN. 17 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