PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77C706645P1Transformer,power

Lockheed Martin Corporation Div Rms · NSN 5950-00-078-1773 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-078-1773 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-078-1773. Primary manufacturer part number: 77C706645P1.
Features
  • Transformer,power — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Voltage: 24.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 1.620 INCHES NOMINAL IN
  • Inclosure Type: HERMETICALLY SEALED
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-078-1773, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5950-00-078-1773
Primary Part Number77C706645P1
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Voltage24.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Thread Quantity Per Inch32 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Body Width1.620 INCHES NOMINAL IN
Inclosure TypeHERMETICALLY SEALED
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Height2.375 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Voltage10.00 AC VOLTS NOMINAL AND 40.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length1.620 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity10 TAB, SOLDER LUG
Frequency Rating60.0 HERTZ MINIMUM AND 1.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-204-2014103-18 INTERCHANGEABLE
Bushing,sleeve
Dukes Aerospace, Inc.
2825-00-218-609610318 INTERCHANGEABLE
Disk,hand Valve
Northrop Grumman Systems Corporation Div Marine Systems
3040-00-395-9441SM-B-157038 INTERCHANGEABLE
Connecting Link,rigid
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4320-00-398-8077 INTERCHANGEABLE
Ring,wearing
3020-00-425-341910318 INTERCHANGEABLE
Gear,spur
Garwood/feller Inc Garwood Winch Div
3120-00-426-761310318 INTERCHANGEABLE
Roller,linear-Rotary Motion
Maniabarco Inc.
5133-00-988-5705DBTBC9/32 INTERCHANGEABLE
Drill,twist
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
3120-01-031-83562505373 INTERCHANGEABLE
Bushing,sleeve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-01-198-206910318 INTERCHANGEABLE
Arm,switch Actuator
Grimes Aerospace Company
5999-01-200-9445 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Cross-Reference Index
Part NumberManufacturer
77C706645P1 Lockheed Martin Corporation Div Rms (USA)
9T35Y2040 General Electric Co Specialty Transformer Dept (USA)
10318 Veeco Instruments Inc Lambda Div (USA)
Related Parts
3120-00-204-2014INTERCHANGEABLE
BUSHING,SLEEVE
103-18
2825-00-218-6096INTERCHANGEABLE
DISK,HAND VALVE
10318
3040-00-395-9441INTERCHANGEABLE
CONNECTING LINK,RIGID
SM-B-157038
4320-00-398-8077INTERCHANGEABLE
RING,WEARING
3020-00-425-3419INTERCHANGEABLE
GEAR,SPUR
10318
3120-00-426-7613INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
10318
5133-00-988-5705INTERCHANGEABLE
DRILL,TWIST
DBTBC9/32
3120-01-031-8356INTERCHANGEABLE
BUSHING,SLEEVE
2505373
5930-01-198-2069INTERCHANGEABLE
ARM,SWITCH ACTUATOR
10318
5999-01-200-9445INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
6850-01-333-0812INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
10-318
5120-01-397-3284INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5950-00-078-1773?

NSN 5950-00-078-1773 is a Transformer,power, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-078-1773?

NSN 5950-00-078-1773 has 3 cross-referenced part numbers: 77C706645P1 (Lockheed Martin Corporation Div Rms), 9T35Y2040 (General Electric Co Specialty Transformer Dept), 10318 (Veeco Instruments Inc Lambda Div).

What NSN replaces 5950-00-078-1773?

There are 12 known substitutes for 5950-00-078-1773: 3120-00-204-2014, 2825-00-218-6096, 3040-00-395-9441 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 77C706645P1?

Key specifications for 77C706645P1: Center to Center Distance Between Mounting Facilities Parallel to Length: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Operating Voltage: 24.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY; Thread Quantity Per Inch: 32 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED. 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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