PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

774859Transformer,power

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-645-1031 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-1031 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-1031. Primary manufacturer part number: 774859.
Features
  • Transformer,power — FSC 5950
  • Winding Operating Voltage: 110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 8 SINGLE GROUP
  • Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Body Length: 2.469 INCHES NOMINAL IN
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Body Height: 3.438 INCHES NOMINAL IN
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-645-1031, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5950-00-645-1031
Primary Part Number774859
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Winding Operating Voltage110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity8 SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length2.469 INCHES NOMINAL IN
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Body Height3.438 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current3.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.031 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Terminal Type and Quantity7 STANDOFF, SOLDER LUG
Body Width2.062 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-001-80601863-9700 INTERCHANGEABLE
Ohmmeter
Quadtech, Inc
4920-00-103-20961863 INTERCHANGEABLE
Test Set,electronic Systems
Thales Uk Limited Dba Thales Uk Ltd Avionics
5330-00-106-73201863 INTERCHANGEABLE
Packing,preformed
Tescom Corp Dba Tescom Div Tescom
5330-00-370-84401863 INTERCHANGEABLE
Seal,plain Encased
Avox Systems Inc Dba Avox Systems Inc
5330-00-484-18141863 INTERCHANGEABLE
Packing,preformed
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
5905-00-799-35641863 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ballantine Laboratories Inc
5310-01-103-7510774859 INTERCHANGEABLE
Washer,flat
Dana Off Highway Products, Llc
2530-01-194-6971 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
5895-01-305-7336174067-017 INTERCHANGEABLE
Interconnecting Box
L3harris Technologies, Inc. Dba Harris Corporation Div L3harris Technologies Inc Dba Harris Corporation
4310-01-351-59241863 INTERCHANGEABLE
Parts Kit,vacuum Pump
Thermal Engineering Co a Div of Sea Kay Co Inc
Cross-Reference Index
Part NumberManufacturer
1863 Precision Electronics, Inc (USA)
774859 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
PEI1863 Precision Electronics, Inc (USA)
Related Parts
6625-00-001-8060INTERCHANGEABLE
OHMMETER
1863-9700
4920-00-103-2096INTERCHANGEABLE
TEST SET,ELECTRONIC SYSTEMS
1863
5330-00-106-7320INTERCHANGEABLE
PACKING,PREFORMED
1863
5330-00-370-8440INTERCHANGEABLE
SEAL,PLAIN ENCASED
1863
5330-00-484-1814INTERCHANGEABLE
PACKING,PREFORMED
1863
5905-00-799-3564INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
1863
5310-01-103-7510INTERCHANGEABLE
WASHER,FLAT
774859
2530-01-194-6971INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
5895-01-305-7336INTERCHANGEABLE
INTERCONNECTING BOX
174067-017
4310-01-351-5924INTERCHANGEABLE
PARTS KIT,VACUUM PUMP
1863
6515-01-544-6873INTERCHANGEABLE
MASK,RESPIRATOR
7000088726
6515-01-583-4457INTERCHANGEABLE
CABLE,OXYGEN SENSOR
1863

Frequently Asked Questions

What is NSN 5950-00-645-1031?

NSN 5950-00-645-1031 is a Transformer,power, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-1031?

NSN 5950-00-645-1031 has 3 cross-referenced part numbers: 1863 (Precision Electronics, Inc), 774859 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), PEI1863 (Precision Electronics, Inc).

What NSN replaces 5950-00-645-1031?

There are 12 known substitutes for 5950-00-645-1031: 6625-00-001-8060, 4920-00-103-2096, 5330-00-106-7320 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 774859?

Key specifications for 774859: Winding Operating Voltage: 110.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL AND 120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Mounting Facility Quantity: 8 SINGLE GROUP; Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT; Body Length: 2.469 INCHES NOMINAL IN. 16 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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