PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M2278Reactor

Microtran Co Inc · NSN 5950-00-821-1746 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-821-1746 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-821-1746. Primary manufacturer part number: M2278.
Features
  • Reactor — FSC 5950
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • DC Resistance Rating in Ohms: 2.000 SINGLE COMPONENT SINGLE WINDING
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-821-1746, 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 Microtran Co Inc. Government technical data includes 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-821-1746
Primary Part NumberM2278
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerMicrotran Co Inc
StatusCANCELLED
Thread Quantity Per Inch32 SINGLE GROUP
DC Resistance Rating in Ohms2.000 SINGLE COMPONENT SINGLE WINDING
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Inclosure TypeHERMETICALLY SEALED
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity2 STANDOFF, SOLDER LUG
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance TypeFIXED
Inductance Rating50.00 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width2.062 INCHES NOMINAL IN
Winding Quantity1 SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current1.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Height3.125 INCHES NOMINAL IN
Body Length2.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2920-00-100-34031851632 INTERCHANGEABLE
Parts Kit,electrical Engine Star
Delco Remy America Inc
5962-01-034-5184SNJ55121J INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
Cross-Reference Index
Part NumberManufacturer
M2278 Microtran Co Inc (USA)
M2278 Electronic Development Co (USA)
194484-1 Raytheon Company (USA)
Related Parts
2920-00-100-3403INTERCHANGEABLE
PARTS KIT,ELECTRICAL ENGINE STAR
1851632
5962-01-034-5184INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SNJ55121J

Frequently Asked Questions

What is NSN 5950-00-821-1746?

NSN 5950-00-821-1746 is a Reactor, manufactured by Microtran Co Inc, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-821-1746?

NSN 5950-00-821-1746 has 3 cross-referenced part numbers: M2278 (Microtran Co Inc), M2278 (Electronic Development Co), 194484-1 (Raytheon Company).

What NSN replaces 5950-00-821-1746?

There are 2 known substitutes for 5950-00-821-1746: 2920-00-100-3403, 5962-01-034-5184. Verify interchangeability with system specifications before substitution.

What are the specifications of M2278?

Key specifications for M2278: Thread Quantity Per Inch: 32 SINGLE GROUP; DC Resistance Rating in Ohms: 2.000 SINGLE COMPONENT SINGLE WINDING; Mounting Method: THREADED STUD(S) SINGLE GROUP; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-821-1746 still in active supply?

NSN 5950-00-821-1746 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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