PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2651Transformer,audio Frequency

Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit · NSN 5950-01-250-4780 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-250-4780 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-250-4780. Primary manufacturer part number: 2651.
Features
  • Transformer,audio Frequency — FSC 5950
  • Body Length: 0.859 INCHES NOMINAL IN
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 20.0 KILOHERTZ NOMINAL SINGLE COMPONENT
  • Maximum Operating Temp: 130.0 CELSIUS DEGC
  • Mounting Method: TAB SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-250-4780, 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 Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit. Government technical data includes 11 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
NSN5950-01-250-4780
Primary Part Number2651
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTransistor Devices Inc Div Astrodyne Tdi High Power Business Unit
StatusACTIVE
Body Length0.859 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Frequency Rating20.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Maximum Operating Temp130.0 CELSIUS DEGC
Mounting MethodTAB SINGLE GROUP
Mounting Tab Width0.032 INCHES NOMINAL IN
Terminal Type and Quantity8 PIN
Body Outside Diameter1.091 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-011-4489 INTERCHANGEABLE
Setscrew
3110-00-044-5228 INTERCHANGEABLE
Bearing,ball,annular
5910-00-284-4669 INTERCHANGEABLE
Capacitor,variable,gas Dielectri
5935-00-295-5006SC-C-41380 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5821-00-700-7279C-3044/ARC-84 INTERCHANGEABLE
Control Unit
Joint Electronics Type Designation System
5365-01-075-64432651 INTERCHANGEABLE
Spacer,sleeve
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5310-01-170-4216 INTERCHANGEABLE
Nut
5935-01-355-75042651 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5945-01-360-611812414270-002 INTERCHANGEABLE
Relay,electromagnetic
U S Army Tank Automotive Command Amsta-Im-Mm
5955-01-394-5905A3110406-001 INTERCHANGEABLE
Crystal Unit,quartz
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
844-016-001 Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division (USA)
2651 PRIMARY Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit (USA)
844-016-001 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
Related Parts
5305-00-011-4489INTERCHANGEABLE
SETSCREW
3110-00-044-5228INTERCHANGEABLE
BEARING,BALL,ANNULAR
5910-00-284-4669INTERCHANGEABLE
CAPACITOR,VARIABLE,GAS DIELECTRI
5935-00-295-5006INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SC-C-41380
5821-00-700-7279INTERCHANGEABLE
CONTROL UNIT
C-3044/ARC-84
5365-01-075-6443INTERCHANGEABLE
SPACER,SLEEVE
2651
5310-01-170-4216INTERCHANGEABLE
NUT
5935-01-355-7504INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2651
5945-01-360-6118INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
12414270-002
5955-01-394-5905INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
A3110406-001
5895-01-480-5569INTERCHANGEABLE
SWITCHING GROUP,DIGITAL DATA
2651
5210-01-498-5261INTERCHANGEABLE
GAGE,RIVET SELECTOR
2-651

Frequently Asked Questions

What is NSN 5950-01-250-4780?

NSN 5950-01-250-4780 is a Transformer,audio Frequency, manufactured by Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-250-4780?

NSN 5950-01-250-4780 has 3 cross-referenced part numbers: 844-016-001 (Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division), 2651 (Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit), 844-016-001 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations).

What NSN replaces 5950-01-250-4780?

There are 12 known substitutes for 5950-01-250-4780: 5305-00-011-4489, 3110-00-044-5228, 5910-00-284-4669 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2651?

Key specifications for 2651: Body Length: 0.859 INCHES NOMINAL IN; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT; Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT; Reliability Indicator: NOT ESTABLISHED. 12 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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