PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17766Transformer,power

Robert M. Hadley Company, Inc. · NSN 5950-01-070-8480 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-070-8480 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-070-8480. Primary manufacturer part number: 17766.
Features
  • Transformer,power — FSC 5950
  • Winding Power Rating: 35.0 MILLIWATTS SINGLE COMPONENT SINGLE PRIMARY
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Current: 3.3 AMPERES AC MINIMUM SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Current: 2.0 AMPERES AC MINIMUM SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Voltage: 28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Winding Operating Voltage: 14.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Winding Operating Voltage: 23.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-070-8480, 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 21 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-070-8480
Primary Part Number17766
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRobert M. Hadley Company, Inc.
StatusACTIVE
Winding Power Rating35.0 MILLIWATTS SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Winding Operating Current3.3 AMPERES AC MINIMUM SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current2.0 AMPERES AC MINIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage28.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage14.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage23.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Body Outside Diameter2.000 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Body Length1.726 INCHES MAXIMUM IN
Winding Operating Current2.5 AMPERES AC MINIMUM SINGLE COMPONENT THIRD SECONDARY
Mounting Hole Diameter0.140 INCHES NOMINAL SINGLE GROUP IN
Frequency Rating20.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Maximum Transformer Power Rating500.0 MILLIWATTS SINGLE COMPONENT
Maximum Operating Temp105.0 CELSIUS DEGC
Terminal Type and Quantity14 TURRET
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity1 SINGLE GROUP
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage6.46 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-071-0273 INTERCHANGEABLE
Ring,bearing,inner
4720-00-207-287717766-02 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4720-00-207-288017766-04 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4720-00-207-288117766-27 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4720-00-207-288417766-73 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4720-00-207-288517766-91 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4720-00-207-290717766-93 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5330-00-364-348817766 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
4720-01-037-741217766-101 INTERCHANGEABLE
Hose Assembly,nonmetallic
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5962-01-075-8626932820-215 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
Cross-Reference Index
Part NumberManufacturer
17766 PRIMARY Robert M. Hadley Company, Inc. (USA)
984838-1C Raytheon Company Dba Raytheon (USA)
Related Parts
3110-00-071-0273INTERCHANGEABLE
RING,BEARING,INNER
4720-00-207-2877INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-02
4720-00-207-2880INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-04
4720-00-207-2881INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-27
4720-00-207-2884INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-73
4720-00-207-2885INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-91
4720-00-207-2907INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-93
5330-00-364-3488INTERCHANGEABLE
GASKET
17766
4720-01-037-7412INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
17766-101
5962-01-075-8626INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-215
6685-01-614-9819INTERCHANGEABLE
THERMOCOUPLE,HEATING ELEMENT
MI-J-3-304-6-U-SHA
2540-01-651-2076INTERCHANGEABLE
PEDALS,BICYCLE EXERCISER
17766

Frequently Asked Questions

What is NSN 5950-01-070-8480?

NSN 5950-01-070-8480 is a Transformer,power, manufactured by Robert M. Hadley Company, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-070-8480?

NSN 5950-01-070-8480 has 2 cross-referenced part numbers: 17766 (Robert M. Hadley Company, Inc.), 984838-1C (Raytheon Company Dba Raytheon).

What NSN replaces 5950-01-070-8480?

There are 12 known substitutes for 5950-01-070-8480: 3110-00-071-0273, 4720-00-207-2877, 4720-00-207-2880 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17766?

Key specifications for 17766: Winding Power Rating: 35.0 MILLIWATTS SINGLE COMPONENT SINGLE PRIMARY; Inclosure Type: FULLY INCLOSED; Winding Operating Current: 3.3 AMPERES AC MINIMUM SINGLE COMPONENT FIRST SECONDARY; Winding Operating Current: 2.0 AMPERES AC MINIMUM SINGLE COMPONENT SECOND SECONDARY. 21 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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