PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10857Transformer,audio Frequency

Pico Electronics Inc · NSN 5950-01-420-8913 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-420-8913 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-420-8913. Primary manufacturer part number: 10857.
Features
  • Transformer,audio Frequency — FSC 5950
  • Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
  • Inclosure Type: FULLY INCLOSED
  • Mounting Method: TERMINAL SINGLE GROUP
  • Overall Diameter: 0.510 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 7 WIRE LEAD
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 75.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Impedance Rating in Ohms: 50.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-420-8913, 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 Pico Electronics Inc. Government technical data includes 13 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-420-8913
Primary Part Number10857
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerPico Electronics Inc
StatusACTIVE
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Mounting MethodTERMINAL SINGLE GROUP
Overall Diameter0.510 INCHES MAXIMUM IN
Terminal Type and Quantity7 WIRE LEAD
Frequency Rating300.0 HERTZ MINIMUM AND 75.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms50.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Maximum Operating Temp130.0 CELSIUS DEGC
Impedance Rating in Ohms200.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Primary to Secondary Turn Ratio2 TO 1 SINGLE COMPONENT
Specification/standard Data78711-T235A447 MANUFACTURERS SPECIFICATION CONTROL
Winding Operating Current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-603-849510857 INTERCHANGEABLE
Washer,spring Tension
Mid-America Aerotech, Llc
5315-00-703-1576 INTERCHANGEABLE
Pin,taper
3040-01-219-6616708818 INTERCHANGEABLE
Lining,steam Chest,cylinder
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4730-01-384-1586 INTERCHANGEABLE
Nozzle,spray,fluid-Emulsion
Cross-Reference Index
Part NumberManufacturer
10857 PRIMARY Pico Electronics Inc (USA)
T235A447 Telephonics Corp (USA)
T235A447-1 PRIMARY Telephonics Corp (USA)
Related Parts
5310-00-603-8495INTERCHANGEABLE
WASHER,SPRING TENSION
10857
5315-00-703-1576INTERCHANGEABLE
PIN,TAPER
3040-01-219-6616INTERCHANGEABLE
LINING,STEAM CHEST,CYLINDER
708818
4730-01-384-1586INTERCHANGEABLE
NOZZLE,SPRAY,FLUID-EMULSION

Frequently Asked Questions

What is NSN 5950-01-420-8913?

NSN 5950-01-420-8913 is a Transformer,audio Frequency, manufactured by Pico Electronics Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-420-8913?

NSN 5950-01-420-8913 has 3 cross-referenced part numbers: 10857 (Pico Electronics Inc), T235A447 (Telephonics Corp), T235A447-1 (Telephonics Corp).

What NSN replaces 5950-01-420-8913?

There are 4 known substitutes for 5950-01-420-8913: 5310-00-603-8495, 5315-00-703-1576, 3040-01-219-6616 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10857?

Key specifications for 10857: Overall Length: 0.350 INCHES MAXIMUM IN; Winding Function and Quantity: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT; Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP. 14 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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