PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L0-0122Transformer,audio Frequency

Rauland-Borg Corp · NSN 5950-00-518-4227 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-518-4227 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-518-4227. Primary manufacturer part number: L0-0122.
Features
  • Transformer,audio Frequency — FSC 5950
  • Impedance Rating in Ohms: 10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Width: 1.438 INCHES NOMINAL IN
  • Terminal Type and Quantity: 4 PIN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Primary to Secondary Turn Ratio: 1 TO 26 SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-518-4227, 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 Rauland-Borg Corp. Government technical data includes 20 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-518-4227
Primary Part NumberL0-0122
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRauland-Borg Corp
StatusCANCELLED
Impedance Rating in Ohms10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Width1.438 INCHES NOMINAL IN
Terminal Type and Quantity4 PIN
Center to Center Distance Between Mounting Facilities Parallel to Width1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Primary to Secondary Turn Ratio1 TO 26 SINGLE COMPONENT
Body Height2.438 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Impedance Rating in Ohms15.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeHERMETICALLY SEALED
Body Length1.438 INCHES NOMINAL IN
Frequency Rating200.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Current50.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Maximum Transformer Power Rating6.0 WATTS SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5940-00-813-056310-209-1 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
8145-01-155-2957117R001-4 INTERCHANGEABLE
Shipping and Storage Container,h
Container Research Corp Dba Container Research Corp Div Containr Research Corporation
3030-01-183-594015581 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
4130-01-215-9930 INTERCHANGEABLE
Cooler Unit,air
3020-01-256-907815581 INTERCHANGEABLE
Chain,roller
Rexnord Industries, Llc Div Couplings Division
5325-01-644-896615581 INTERCHANGEABLE
Ring,retaining
Allied Power Products, Inc. Dba Allied Power Products Inc
Cross-Reference Index
Part NumberManufacturer
15581 Emerson Electric Co White-Rodgers Div (USA)
49C13477 Army Air Force Drawings Under Custodianship of the Air Force
L0-0122 PRIMARY Rauland-Borg Corp (USA)
Related Parts
5940-00-813-0563INTERCHANGEABLE
TERMINAL,STUD
10-209-1
8145-01-155-2957INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,H
117R001-4
3030-01-183-5940INTERCHANGEABLE
BELT,V
15581
4130-01-215-9930INTERCHANGEABLE
COOLER UNIT,AIR
3020-01-256-9078INTERCHANGEABLE
CHAIN,ROLLER
15581
5325-01-644-8966INTERCHANGEABLE
RING,RETAINING
15581

Frequently Asked Questions

What is NSN 5950-00-518-4227?

NSN 5950-00-518-4227 is a Transformer,audio Frequency, manufactured by Rauland-Borg Corp, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-518-4227?

NSN 5950-00-518-4227 has 3 cross-referenced part numbers: 15581 (Emerson Electric Co White-Rodgers Div), 49C13477 (Army Air Force Drawings Under Custodianship of the Air Force), L0-0122 (Rauland-Borg Corp).

What NSN replaces 5950-00-518-4227?

There are 6 known substitutes for 5950-00-518-4227: 5940-00-813-0563, 8145-01-155-2957, 3030-01-183-5940 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L0-0122?

Key specifications for L0-0122: Impedance Rating in Ohms: 10000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Reliability Indicator: NOT ESTABLISHED; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT; Body Width: 1.438 INCHES NOMINAL IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-518-4227 still in active supply?

NSN 5950-00-518-4227 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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