PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40123Saturable Reactor

Coast/advanced Chip Magnetics, Inc. · NSN 5950-00-491-3844 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-491-3844 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-491-3844. Primary manufacturer part number: 40123.
Features
  • Saturable Reactor — FSC 5950
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Inclosure Type: HERMETICALLY SEALED
  • Terminal Type and Quantity: 7 PIN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Winding Function and Quantity: 2 PRIMARY AND 1 CONTROL SINGLE COMPONENT
  • Winding Shielding Method: INTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Saturable Reactor, cataloged under National Stock Number 5950-00-491-3844, 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 Coast/advanced Chip Magnetics, Inc.. Government technical data includes 13 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-491-3844
Primary Part Number40123
Item NameSaturable Reactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCoast/advanced Chip Magnetics, Inc.
StatusCANCELLED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Terminal Type and Quantity7 PIN
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 1 CONTROL SINGLE COMPONENT
Winding Shielding MethodINTERNAL SHIELD BROUGHT OUT TO TERMINAL SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Height2.812 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
1620-00-005-37424012-3 INTERCHANGEABLE
Parts Kit,actuator
The Boeing Company Div Defense
3110-00-151-8384L521910 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3110-00-583-799840123 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
2530-00-624-867940123 INTERCHANGEABLE
Shaft Asy
Trw Inc Trw Commercial Steering Div
1270-00-674-803852190 INTERCHANGEABLE
Tube Assembly,strip Actuator Tor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4720-01-043-6789SAE-20/2ECLT-A-559X38 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
5315-01-094-0054 INTERCHANGEABLE
Pin
6160-01-394-7136 INTERCHANGEABLE
Retainer,battery
6240-01-475-508540123 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
5310-01-533-616192147A430 INTERCHANGEABLE
Washer,split
Mcmaster-Carr Supply Co
Cross-Reference Index
Part NumberManufacturer
40123 Coast/advanced Chip Magnetics, Inc. (USA)
184C00065-00 Pax Mfg Corp Pax Electronics Div (USA)
T0780 Magnetika Inc Div Magnetika/phillipsburg Location (USA)
T0780 Opt Industries Inc Div of Electronika Inc (USA)
52190 Omnitec Data Corp Sub of Nytronics Inc (USA)
52190 Opt Industries Inc Div of Electronika Inc (USA)
XR-9020 Wiltek Inc (USA)
C1500-09 Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
Related Parts
1620-00-005-3742INTERCHANGEABLE
PARTS KIT,ACTUATOR
4012-3
3110-00-151-8384INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
L521910
3110-00-583-7998INTERCHANGEABLE
BEARING,BALL,ANNULAR
40123
2530-00-624-8679INTERCHANGEABLE
SHAFT ASY
40123
1270-00-674-8038INTERCHANGEABLE
TUBE ASSEMBLY,STRIP ACTUATOR TOR
52190
4720-01-043-6789INTERCHANGEABLE
HOSE,NONMETALLIC
SAE-20/2ECLT-A-559X38
5315-01-094-0054INTERCHANGEABLE
PIN
6160-01-394-7136INTERCHANGEABLE
RETAINER,BATTERY
6240-01-475-5085INTERCHANGEABLE
LAMP,FLUORESCENT
40123
5310-01-533-6161INTERCHANGEABLE
WASHER,SPLIT
92147A430
8465-01-565-4010INTERCHANGEABLE
HYDRATION SYSTEM
40123

Frequently Asked Questions

What is NSN 5950-00-491-3844?

NSN 5950-00-491-3844 is a Saturable Reactor, manufactured by Coast/advanced Chip Magnetics, Inc., classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-491-3844?

NSN 5950-00-491-3844 has 8 cross-referenced part numbers: 40123 (Coast/advanced Chip Magnetics, Inc.), 184C00065-00 (Pax Mfg Corp Pax Electronics Div), T0780 (Magnetika Inc Div Magnetika/phillipsburg Location), T0780 (Opt Industries Inc Div of Electronika Inc), 52190 (Omnitec Data Corp Sub of Nytronics Inc) and 3 more.

What NSN replaces 5950-00-491-3844?

There are 11 known substitutes for 5950-00-491-3844: 1620-00-005-3742, 3110-00-151-8384, 3110-00-583-7998 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40123?

Key specifications for 40123: Mounting Method: THREADED STUD(S) SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Overall Width: 2.375 INCHES NOMINAL IN; Terminal Type and Quantity: 7 PIN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-491-3844 still in active supply?

NSN 5950-00-491-3844 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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