PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

986257-2BReactor

Raytheon Company Dba Raytheon · NSN 5950-01-123-1481 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-123-1481 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-123-1481. Primary manufacturer part number: 986257-2B.
Features
  • Reactor — FSC 5950
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Winding Operating Current: 225.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Mounting Facility Quantity: 8 SINGLE GROUP
  • Terminal Type and Quantity: 4 COMPONENT SOCKET
  • Reliability Indicator: NOT ESTABLISHED
  • Inductance Type: FIXED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-123-1481, 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 Raytheon Company Dba Raytheon. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-123-1481
Primary Part Number986257-2B
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Winding Operating Current225.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity8 SINGLE GROUP
Terminal Type and Quantity4 COMPONENT SOCKET
Reliability IndicatorNOT ESTABLISHED
Inductance TypeFIXED
DC Resistance Rating in Ohms0.0002 SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Width0.400 INCHES NOMINAL AND 1.200 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Hole Diameter0.156 INCHES NOMINAL SINGLE GROUP IN
Winding Quantity1 SINGLE COMPONENT
Body Height1.530 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S) AND UNTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.530 INCHES MAXIMUM IN
Frequency Rating40.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Maximum Operating Temp130.0 CELSIUS DEGC
Inclosure TypeFULLY INCLOSED
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance Rating3.50 MICROHENRIES MINIMUM SINGLE COMPONENT SINGLE WINDING
Body Length2.690 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5331-00-027-61537907 INTERCHANGEABLE
O-Ring
Cooper Machinery Services Llc
7510-00-079-7907TS-441T-4 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
Tapesouth Inc Dba Tapesouth Inc
5905-00-195-42877907 INTERCHANGEABLE
Resistor,fixed,wire Wound
Triplett (bluffton) Corporation Dba Lfe Instruments
2825-00-218-60467907 INTERCHANGEABLE
Spindle,governor
Northrop Grumman Systems Corporation Div Marine Systems
2010-00-362-6821DB7907 INTERCHANGEABLE
Disk,pinion
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
2990-00-401-8369T-7907 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3930-00-544-0295 INTERCHANGEABLE
Cylinder Assembly,hydraulic
5930-00-630-47107907 INTERCHANGEABLE
Switch,thermostatic
Therm-O-Disc Incorporated
4820-00-839-1512242075 INTERCHANGEABLE
Disk,valve
Eaton Aerospace, Llc Dba Jackson South
5950-00-871-36852134582 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
WE-3459 Magnetika Inc (USA)
862211 Raytheon Company Dba Raytheon (USA)
315-18053-01 Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems (USA)
WE-3459 Wems Electronics Transformer Group (USA)
40352-2 Coast/advanced Chip Magnetics, Inc. (USA)
7907 Precision Electronics, Inc (USA)
18961 Robert M. Hadley Company, Inc. (USA)
986257-2B PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
5331-00-027-6153INTERCHANGEABLE
O-RING
7907
7510-00-079-7907INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
TS-441T-4
5905-00-195-4287INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
7907
2825-00-218-6046INTERCHANGEABLE
SPINDLE,GOVERNOR
7907
2010-00-362-6821INTERCHANGEABLE
DISK,PINION
DB7907
2990-00-401-8369INTERCHANGEABLE
MUFFLER,EXHAUST
T-7907
3930-00-544-0295INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC
5930-00-630-4710INTERCHANGEABLE
SWITCH,THERMOSTATIC
7907
4820-00-839-1512INTERCHANGEABLE
DISK,VALVE
242075
5950-00-871-3685INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2134582
4730-01-020-8438INTERCHANGEABLE
SPUD,WATER CLOSET
5980-01-033-9926INTERCHANGEABLE
LIGHT EMITTING DIODE
MV5053

Frequently Asked Questions

What is NSN 5950-01-123-1481?

NSN 5950-01-123-1481 is a Reactor, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-123-1481?

NSN 5950-01-123-1481 has 8 cross-referenced part numbers: WE-3459 (Magnetika Inc), 862211 (Raytheon Company Dba Raytheon), 315-18053-01 (Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems), WE-3459 (Wems Electronics Transformer Group), 40352-2 (Coast/advanced Chip Magnetics, Inc.) and 3 more.

What NSN replaces 5950-01-123-1481?

There are 12 known substitutes for 5950-01-123-1481: 5331-00-027-6153, 7510-00-079-7907, 5905-00-195-4287 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 986257-2B?

Key specifications for 986257-2B: Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN; Winding Operating Current: 225.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Mounting Facility Quantity: 8 SINGLE GROUP. 21 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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