PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77C708643P001Transformer,audio Frequency

Lockheed Martin Corporation Div Rms · NSN 5950-00-936-5939 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-936-5939 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-936-5939. Primary manufacturer part number: 77C708643P001.
Features
  • Transformer,audio Frequency — FSC 5950
  • Impedance Rating in Ohms: 2000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Mounting Hole Diameter: 0.135 INCHES MAXIMUM SINGLE GROUP IN
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Terminal Type and Quantity: 5 WIRE HOOK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-936-5939, 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 14 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-936-5939
Primary Part Number77C708643P001
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms
StatusCANCELLED
Impedance Rating in Ohms2000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.135 INCHES MAXIMUM SINGLE GROUP IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Mounting Facility Quantity2 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity5 WIRE HOOK
Body Width0.720 INCHES MAXIMUM IN
Body Height1.120 INCHES MAXIMUM IN
Body Length0.720 INCHES MAXIMUM IN
Inclosure TypeHERMETICALLY SEALED
Distance Between Mounting Facility Centers1.120 INCHES MINIMUM AND 1.130 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Slot Width0.120 INCHES MINIMUM AND 0.139 INCHES MAXIMUM SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5960-00-239-30528893166 INTERCHANGEABLE
Electron Tube
Us Army Aviation and Missile Command
5315-00-261-35855881 INTERCHANGEABLE
Key,machine
Eaton Aerospace, Llc Dba Jackson South
5960-00-262-0161 INTERCHANGEABLE
Electron Tube
5315-00-264-3102SCD16871 INTERCHANGEABLE
Key,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3455-00-540-1988 INTERCHANGEABLE
Reamer,machine
5905-00-761-4264C600011967 INTERCHANGEABLE
Resistor Set,matched
Kearfott Corporation Div Guidance and Navigation Division
5960-00-996-6898 INTERCHANGEABLE
Electron Tube
6115-01-020-1868 INTERCHANGEABLE
Rod Assembly,control
7025-01-210-0999MU-836/FSQ INTERCHANGEABLE
Disk Drive Unit
Joint Electronics Type Designation System
1560-01-330-27855881 INTERCHANGEABLE
Tank,fuel,aircraft
United States Department of the Army Dba Letterkenny Army Depot
Cross-Reference Index
Part NumberManufacturer
77C708643P001 Lockheed Martin Corporation Div Rms (USA)
9T31Y202DA General Electric Co Specialty Transformer Dept (USA)
5881 Precision Electronics, Inc (USA)
Related Parts
5960-00-239-3052INTERCHANGEABLE
ELECTRON TUBE
8893166
5315-00-261-3585INTERCHANGEABLE
KEY,MACHINE
5881
5960-00-262-0161INTERCHANGEABLE
ELECTRON TUBE
5315-00-264-3102INTERCHANGEABLE
KEY,MACHINE
SCD16871
3455-00-540-1988INTERCHANGEABLE
REAMER,MACHINE
5905-00-761-4264INTERCHANGEABLE
RESISTOR SET,MATCHED
C600011967
5960-00-996-6898INTERCHANGEABLE
ELECTRON TUBE
6115-01-020-1868INTERCHANGEABLE
ROD ASSEMBLY,CONTROL
7025-01-210-0999INTERCHANGEABLE
DISK DRIVE UNIT
MU-836/FSQ
1560-01-330-2785INTERCHANGEABLE
TANK,FUEL,AIRCRAFT
5881
1005-01-459-4782INTERCHANGEABLE
BOLT,BREECH
5881

Frequently Asked Questions

What is NSN 5950-00-936-5939?

NSN 5950-00-936-5939 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-936-5939?

NSN 5950-00-936-5939 has 3 cross-referenced part numbers: 77C708643P001 (Lockheed Martin Corporation Div Rms), 9T31Y202DA (General Electric Co Specialty Transformer Dept), 5881 (Precision Electronics, Inc).

What NSN replaces 5950-00-936-5939?

There are 11 known substitutes for 5950-00-936-5939: 5960-00-239-3052, 5315-00-261-3585, 5960-00-262-0161 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 77C708643P001?

Key specifications for 77C708643P001: Impedance Rating in Ohms: 2000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Mounting Hole Diameter: 0.135 INCHES MAXIMUM SINGLE GROUP IN; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO CORE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-936-5939 still in active supply?

NSN 5950-00-936-5939 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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