PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81511Transformer,power

Hamilton Sundstrand Corporation Dba Collins Aerospace · NSN 5950-01-143-5995 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-143-5995 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-143-5995. Primary manufacturer part number: 81511.
Features
  • Transformer,power — FSC 5950
  • Body Width: 1.750 INCHES MAXIMUM IN
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
  • Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE GROUP IN
  • Body Height: 2.000 INCHES NOMINAL IN
  • Distance Between Mounting Facility Centers: 2.812 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 2 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-143-5995, 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 Dba Collins Aerospace. Government technical data includes 18 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-143-5995
Primary Part Number81511
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation Dba Collins Aerospace
StatusACTIVE
Body Width1.750 INCHES MAXIMUM IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting Hole Diameter0.187 INCHES NOMINAL SINGLE GROUP IN
Body Height2.000 INCHES NOMINAL IN
Distance Between Mounting Facility Centers2.812 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Winding Operating Current30.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity5 TAB, SOLDER LUG AND 1 WIRE LEAD
Maximum Operating Temp155.0 CELSIUS DEGC
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage65.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting MethodBRACKET(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Body Length2.310 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1650-00-129-91338151-1 INTERCHANGEABLE
Sleeve
Goodrich Aerospace Canada Ltd
4820-00-202-6250 INTERCHANGEABLE
Cock,plug
4920-00-870-52178-15-1-1 INTERCHANGEABLE
Accessory Kit,test Set
Celtech Corporation Div Use CAGE 65552 for All Orders
2540-01-184-480181511 INTERCHANGEABLE
Track,seat Adjuster
Atwood Mobile Products Div
5315-01-432-0894741011-A INTERCHANGEABLE
Pin,straight,headless
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
5306-01-437-4484 INTERCHANGEABLE
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
81511 United Technologies Corp Hamilton Sundstrand Corp (USA)
81511 PRIMARY Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
1650-00-129-9133INTERCHANGEABLE
SLEEVE
8151-1
4820-00-202-6250INTERCHANGEABLE
COCK,PLUG
4920-00-870-5217INTERCHANGEABLE
ACCESSORY KIT,TEST SET
8-15-1-1
2540-01-184-4801INTERCHANGEABLE
TRACK,SEAT ADJUSTER
81511
5315-01-432-0894INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
741011-A
5306-01-437-4484INTERCHANGEABLE
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5950-01-143-5995?

NSN 5950-01-143-5995 is a Transformer,power, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-143-5995?

NSN 5950-01-143-5995 has 2 cross-referenced part numbers: 81511 (United Technologies Corp Hamilton Sundstrand Corp), 81511 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 5950-01-143-5995?

There are 6 known substitutes for 5950-01-143-5995: 1650-00-129-9133, 4820-00-202-6250, 4920-00-870-5217 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 81511?

Key specifications for 81511: Body Width: 1.750 INCHES MAXIMUM IN; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT; Mounting Hole Diameter: 0.187 INCHES NOMINAL SINGLE GROUP IN. 19 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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