PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

109B108-1Reactor

Telephonics Corp · NSN 5950-00-691-0270 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-691-0270 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-691-0270. Primary manufacturer part number: 109B108-1.
Features
  • Reactor — FSC 5950
  • Winding Quantity: 1 SINGLE COMPONENT
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Body Length: 1.688 INCHES NOMINAL IN
  • Body Height: 0.875 INCHES NOMINAL IN
  • Inductance Type: FIXED
  • Winding Operating Current: 200.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Inclosure Type: OPEN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-691-0270, 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 Telephonics Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-691-0270
Primary Part Number109B108-1
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTelephonics Corp
StatusCANCELLED
Winding Quantity1 SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Body Length1.688 INCHES NOMINAL IN
Body Height0.875 INCHES NOMINAL IN
Inductance TypeFIXED
Winding Operating Current200.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inclosure TypeOPEN
Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE GROUP IN
DC Resistance Rating in Ohms7.000 SINGLE COMPONENT SINGLE WINDING
Body Width0.875 INCHES NOMINAL IN
Inductance Rating45.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Distance Between Mounting Facility Centers1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity2 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-018-60373144 INTERCHANGEABLE
Nut,swivel
Roller Bearing Co of America, Inc Div Pic Design
5961-00-069-506605-03144-0A INTERCHANGEABLE
Semiconductor Device,diode
Ballantine Laboratories Inc
3110-00-155-67460042971 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
5220-00-215-2171 INTERCHANGEABLE
Gage,profile
2940-00-300-0891151940 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Inc.
5999-00-739-9621 INTERCHANGEABLE
Heater,thermal Release
6680-00-904-5108454-821 INTERCHANGEABLE
Counter,rotating
Cmc Electronics Inc
6680-01-003-1111313144 INTERCHANGEABLE
Tachometer,vibrating Reed
Avo Intl
2530-01-022-6198 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
6515-01-061-63853144 INTERCHANGEABLE
Stockings,anti-Embolism
Covidien Sales Llc Dba Covidien Sales
Cross-Reference Index
Part NumberManufacturer
42409 Coast/advanced Chip Magnetics, Inc. (USA)
106A0003-1 West Electronics Inc (USA)
HY-2783 Hytronics Corp. (USA)
C13645 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
3144 Signal Transformer Co Inc (USA)
100B0003-1 West Electronics Inc (USA)
PEI 6348 Precision Electronics, Inc (USA)
MEC1000703 Monmouth Industries Inc (USA)
109B108-1 PRIMARY Telephonics Corp (USA)
227-3512 Crane Electronics, Inc. (USA)
Related Parts
5310-00-018-6037INTERCHANGEABLE
NUT,SWIVEL
3144
5961-00-069-5066INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
05-03144-0A
3110-00-155-6746INTERCHANGEABLE
BEARING,BALL,ANNULAR
0042971
5220-00-215-2171INTERCHANGEABLE
GAGE,PROFILE
2940-00-300-0891INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
151940
5999-00-739-9621INTERCHANGEABLE
HEATER,THERMAL RELEASE
6680-00-904-5108INTERCHANGEABLE
COUNTER,ROTATING
454-821
6680-01-003-1111INTERCHANGEABLE
TACHOMETER,VIBRATING REED
313144
2530-01-022-6198INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
6515-01-061-6385INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
3144
5962-01-088-9483INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42409
5136-01-152-4630INTERCHANGEABLE
DIE,THREAD CUTTING

Frequently Asked Questions

What is NSN 5950-00-691-0270?

NSN 5950-00-691-0270 is a Reactor, manufactured by Telephonics Corp, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-691-0270?

NSN 5950-00-691-0270 has 10 cross-referenced part numbers: 42409 (Coast/advanced Chip Magnetics, Inc.), 106A0003-1 (West Electronics Inc), HY-2783 (Hytronics Corp.), C13645 (Electronic Transformer Corp Div Electronic Transformer Corporation), 3144 (Signal Transformer Co Inc) and 5 more.

What NSN replaces 5950-00-691-0270?

There are 12 known substitutes for 5950-00-691-0270: 5310-00-018-6037, 5961-00-069-5066, 3110-00-155-6746 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 109B108-1?

Key specifications for 109B108-1: Winding Quantity: 1 SINGLE COMPONENT; Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING; Body Length: 1.688 INCHES NOMINAL IN; Body Height: 0.875 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-691-0270 still in active supply?

NSN 5950-00-691-0270 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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