PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ES622Transformer,power

Drs Sustainment Systems Inc · NSN 5950-00-683-7943 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-683-7943 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-683-7943. Primary manufacturer part number: ES622.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN
  • Body Height: 2.000 INCHES NOMINAL IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Body Length: 2.500 INCHES NOMINAL IN
  • Frequency Rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-683-7943, 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 Drs Sustainment Systems Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN5950-00-683-7943
Primary Part NumberES622
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerDrs Sustainment Systems Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Height2.000 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length2.500 INCHES NOMINAL IN
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Quantity Per Inch32 SINGLE GROUP
Winding Operating Current1.0 AMPERES AC MAXIMUM SINGLE COMPONENT ALL SECONDARY
Distance Between Mounting Facility Centers1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.750 INCHES NOMINAL IN
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL SECONDARY
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Inclosure TypeOPEN
Mounting Facility Quantity2 SINGLE GROUP
Terminal Type and Quantity6 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-554-3356312WDG INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
5962-01-088-857742279 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5985-01-445-7059S-4879 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Rlc Electronics, Inc
6240-01-554-4548 INTERCHANGEABLE
Lamp,incandescent
Cross-Reference Index
Part NumberManufacturer
S4879 United Transformer Corp Sub of Opt Industries Inc (USA)
ES622 PRIMARY Drs Sustainment Systems Inc (USA)
ES622 Drs Sustainment Systems, Inc. (USA)
S4879 Magnetika Inc (USA)
42279 Vanguard Electronics, Llc (USA)
Related Parts
3110-00-554-3356INTERCHANGEABLE
BEARING,BALL,ANNULAR
312WDG
5962-01-088-8577INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42279
5985-01-445-7059INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
S-4879
6240-01-554-4548INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 5950-00-683-7943?

NSN 5950-00-683-7943 is a Transformer,power, manufactured by Drs Sustainment Systems Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-683-7943?

NSN 5950-00-683-7943 has 5 cross-referenced part numbers: S4879 (United Transformer Corp Sub of Opt Industries Inc), ES622 (Drs Sustainment Systems Inc), ES622 (Drs Sustainment Systems, Inc.), S4879 (Magnetika Inc), 42279 (Vanguard Electronics, Llc).

What NSN replaces 5950-00-683-7943?

There are 4 known substitutes for 5950-00-683-7943: 3110-00-554-3356, 5962-01-088-8577, 5985-01-445-7059 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ES622?

Key specifications for ES622: Reliability Indicator: NOT ESTABLISHED; Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN; Body Height: 2.000 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 18 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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