PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CH-4Reactor

Signal Transformer Co Inc · NSN 5950-00-085-0590 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-085-0590 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-085-0590. Primary manufacturer part number: CH-4.
Features
  • Reactor — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 3.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inductance Rating: 70.00 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Slot Width: 0.169 INCHES NOMINAL SINGLE GROUP IN
  • Inductance Type: FIXED
  • Winding Quantity: 1 SINGLE COMPONENT
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-085-0590, 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 Signal Transformer Co Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-085-0590
Primary Part NumberCH-4
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerSignal Transformer Co Inc
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Length3.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance Rating70.00 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Slot Width0.169 INCHES NOMINAL SINGLE GROUP IN
Inductance TypeFIXED
Winding Quantity1 SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
DC Resistance Rating in Ohms0.600 SINGLE COMPONENT SINGLE WINDING
Winding Operating Current4.0 AMPERES DC NOMINAL SINGLE COMPONENT SINGLE WINDING
Inclosure TypeOPEN
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type and Quantity2 TAB, SOLDER LUG
Mounting MethodBRACKET(S) AND SLOT SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5120-00-242-39085120-00-242-3908 INTERCHANGEABLE
Hammer,hand
General Services Administration Federal Supply Service
3820-00-429-7589 INTERCHANGEABLE
Screen
5120-00-516-4334DWG5120-00-516-4334 INTERCHANGEABLE
Hammer,hand
General Services Administration Federal Supply Service
6140-00-921-3670C18.2M 1.2K4 INTERCHANGEABLE
Battery,storage
Sae International Dba Sae International
6240-01-124-5309100S INTERCHANGEABLE
Lamp,mercury Vapor
Spectronics Corporation
6505-01-645-48923847003 INTERCHANGEABLE
Calcium Hydroxide
Henry Schein, Inc.
Cross-Reference Index
Part NumberManufacturer
CH-4 Signal Transformer Co Inc (USA)
Related Parts
5120-00-242-3908INTERCHANGEABLE
HAMMER,HAND
5120-00-242-3908
3820-00-429-7589INTERCHANGEABLE
SCREEN
5120-00-516-4334INTERCHANGEABLE
HAMMER,HAND
DWG5120-00-516-4334
6140-00-921-3670INTERCHANGEABLE
BATTERY,STORAGE
C18.2M 1.2K4
6240-01-124-5309INTERCHANGEABLE
LAMP,MERCURY VAPOR
100S
6505-01-645-4892INTERCHANGEABLE
CALCIUM HYDROXIDE
3847003

Frequently Asked Questions

What is NSN 5950-00-085-0590?

NSN 5950-00-085-0590 is a Reactor, manufactured by Signal Transformer Co Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-085-0590?

NSN 5950-00-085-0590 has 1 cross-referenced part number: CH-4 (Signal Transformer Co Inc).

What NSN replaces 5950-00-085-0590?

There are 6 known substitutes for 5950-00-085-0590: 5120-00-242-3908, 3820-00-429-7589, 5120-00-516-4334 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CH-4?

Key specifications for CH-4: Center to Center Distance Between Mounting Facilities Parallel to Length: 3.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inductance Rating: 70.00 MILLIHENRIES MINIMUM SINGLE COMPONENT SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Slot Width: 0.169 INCHES NOMINAL SINGLE GROUP IN. 17 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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