PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20689Transformer,pulse

Torotel, Inc. Div Torotel Products, Inc. · NSN 5950-00-003-8228 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-003-8228 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-003-8228. Primary manufacturer part number: 20689.
Features
  • Transformer,pulse — FSC 5950
  • Inductance Rating: 52.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Outside Diameter: 2.520 INCHES NOMINAL IN
  • Inclosure Type: FULLY INCLOSED
  • Mounting Method: TERMINAL SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
  • DC Resistance Rating in Ohms: 0.014 SINGLE COMPONENT SECOND SECONDARY
  • Winding Operating Current: 5.0 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,pulse, cataloged under National Stock Number 5950-00-003-8228, 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 Torotel, Inc. Div Torotel Products, Inc.. Government technical data includes 17 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-003-8228
Primary Part Number20689
Item NameTransformer,pulse
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTorotel, Inc. Div Torotel Products, Inc.
StatusACTIVE
Inductance Rating52.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Outside Diameter2.520 INCHES NOMINAL IN
Inclosure TypeFULLY INCLOSED
Mounting MethodTERMINAL SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
DC Resistance Rating in Ohms0.014 SINGLE COMPONENT SECOND SECONDARY
Winding Operating Current5.0 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
DC Resistance Rating in Ohms0.012 SINGLE COMPONENT FIRST SECONDARY
Winding Operating Current16.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Current7.0 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
DC Resistance Rating in Ohms0.010 SINGLE COMPONENT SINGLE PRIMARY
Terminal Type and Quantity9 PIN
Body Length1.200 INCHES NOMINAL IN
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Frequency Rating40.0 KILOHERTZ NOMINAL SINGLE COMPONENT
DC Resistance Rating in Ohms0.043 SINGLE COMPONENT THIRD SECONDARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5998-00-083-90772068-9 INTERCHANGEABLE
Circuit Card Assembly
Rockwell Collins, Inc. Dba Rc Displays Systems
4210-00-177-863320-689 INTERCHANGEABLE
Hose Assembly,nonmetallic,fire F
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5133-00-189-9268 INTERCHANGEABLE
Drill,twist
3120-01-366-7760N20689 INTERCHANGEABLE
Bushing,sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
6240-01-463-5935 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
20689 Torotel, Inc. Div Torotel Products, Inc. (USA)
124T8 A.e.york, Llc (USA)
662-0432-010 Alcatel-Lucent Holdings Inc. (USA)
Related Parts
5998-00-083-9077INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2068-9
4210-00-177-8633INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC,FIRE F
20-689
5133-00-189-9268INTERCHANGEABLE
DRILL,TWIST
3120-01-366-7760INTERCHANGEABLE
BUSHING,SLEEVE
N20689
6240-01-463-5935INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 5950-00-003-8228?

NSN 5950-00-003-8228 is a Transformer,pulse, manufactured by Torotel, Inc. Div Torotel Products, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-003-8228?

NSN 5950-00-003-8228 has 3 cross-referenced part numbers: 20689 (Torotel, Inc. Div Torotel Products, Inc.), 124T8 (A.e.york, Llc), 662-0432-010 (Alcatel-Lucent Holdings Inc.).

What NSN replaces 5950-00-003-8228?

There are 5 known substitutes for 5950-00-003-8228: 5998-00-083-9077, 4210-00-177-8633, 5133-00-189-9268 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20689?

Key specifications for 20689: Inductance Rating: 52.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Body Outside Diameter: 2.520 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Mounting Method: TERMINAL SINGLE GROUP. 17 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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