PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C4493Reactor

Sigma Electronics, Inc. · NSN 5950-01-104-8518 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-104-8518 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-104-8518. Primary manufacturer part number: C4493.
Features
  • Reactor — FSC 5950
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: HERMETICALLY SEALED
  • Inductance Type: MECHANICALLY ADJUSTABLE
  • Distance Between Mounting Facility Centers: 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Height: 1.312 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-104-8518, 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 Sigma Electronics, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-104-8518
Primary Part NumberC4493
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSigma Electronics, Inc.
StatusACTIVE
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Inductance TypeMECHANICALLY ADJUSTABLE
Distance Between Mounting Facility Centers1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height1.312 INCHES NOMINAL IN
Mounting Facility Quantity2 SINGLE GROUP
DC Resistance Rating in Ohms0.060 SINGLE COMPONENT SINGLE WINDING
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance Rating101.00 MICROHENRIES MINIMUM AND 1.33 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Operating Current0.3 AMPERES DC MINIMUM AND 5.5 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Width1.312 INCHES NOMINAL IN
Terminal Type and Quantity3 TAB, SOLDER LUG
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Body Length1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-209-9967 INTERCHANGEABLE
Bumper
4130-00-393-4824 INTERCHANGEABLE
Valve Plate,compressor
Cross-Reference Index
Part NumberManufacturer
C4493 Sigma Electronics, Inc. (USA)
18086 Robert M. Hadley Company, Inc. (USA)
0172-3-1113-025 Usacecom Intelligence Electronic Warfare Sensors Directorate (USA)
0172-3-1113-025 Ail Systems Inc Sub of Eaton Corp (USA)
Related Parts
5340-00-209-9967INTERCHANGEABLE
BUMPER
4130-00-393-4824INTERCHANGEABLE
VALVE PLATE,COMPRESSOR

Frequently Asked Questions

What is NSN 5950-01-104-8518?

NSN 5950-01-104-8518 is a Reactor, manufactured by Sigma Electronics, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-104-8518?

NSN 5950-01-104-8518 has 4 cross-referenced part numbers: C4493 (Sigma Electronics, Inc.), 18086 (Robert M. Hadley Company, Inc.), 0172-3-1113-025 (Usacecom Intelligence Electronic Warfare Sensors Directorate), 0172-3-1113-025 (Ail Systems Inc Sub of Eaton Corp).

What NSN replaces 5950-01-104-8518?

There are 2 known substitutes for 5950-01-104-8518: 5340-00-209-9967, 4130-00-393-4824. Verify interchangeability with system specifications before substitution.

What are the specifications of C4493?

Key specifications for C4493: Special Features: INTERNALLY SHIELDED AND BROUGHT OUT TO TERMINAL; Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN; Thread Quantity Per Inch: 32 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com