PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1904Reactor

Standard Industries · NSN 5950-01-186-0193 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-186-0193 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-186-0193. Primary manufacturer part number: 1904.
Features
  • Reactor — FSC 5950
  • Body Length: 2.870 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Frequency Rating: 40.0 HERTZ NOMINAL AND 800.0 HERTZ NOMINAL SINGLE COMPONENT
  • Body Height: 2.000 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Terminal Type and Quantity: 2 TURRET
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-186-0193, 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 Standard Industries. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5950-01-186-0193
Primary Part Number1904
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerStandard Industries
StatusACTIVE
Body Length2.870 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Frequency Rating40.0 HERTZ NOMINAL AND 800.0 HERTZ NOMINAL SINGLE COMPONENT
Body Height2.000 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity2 TURRET
Inclosure TypeHERMETICALLY SEALED
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Maximum Operating Temp130.0 CELSIUS DEGC
Mounting Facility Quantity4 SINGLE GROUP
Winding Operating Current3.5 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance Rating27.00 MILLIHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Thread Quantity Per Inch40 SINGLE GROUP
Body Width2.000 INCHES NOMINAL IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
DC Resistance Rating in Ohms0.420 SINGLE COMPONENT SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-050-2308 INTERCHANGEABLE
Terminal,lug
5340-00-085-3166CF125 INTERCHANGEABLE
Strap,retaining
Egs Electrical Group Appleton Div
5310-00-187-859573A4 INTERCHANGEABLE
Washer,lock
Philips North America Llc Dba Philips Healthcare
5310-00-187-8609 INTERCHANGEABLE
Washer,lock
5315-00-252-60031904 INTERCHANGEABLE
Pin,straight,headed
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5930-00-356-8129 INTERCHANGEABLE
Switch,push
4320-00-359-92691904 INTERCHANGEABLE
Impeller,pump,centrifugal
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3110-00-406-606768-423508 INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3130-00-441-75881904 INTERCHANGEABLE
Cap,pillow Block
Alamo Aircraft, Ltd.
2520-00-654-82271904 INTERCHANGEABLE
Power Takeoff,transmission
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
Cross-Reference Index
Part NumberManufacturer
1034B9002-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
1904 PRIMARY Standard Industries (USA)
Related Parts
5940-00-050-2308INTERCHANGEABLE
TERMINAL,LUG
5340-00-085-3166INTERCHANGEABLE
STRAP,RETAINING
CF125
5310-00-187-8595INTERCHANGEABLE
WASHER,LOCK
73A4
5310-00-187-8609INTERCHANGEABLE
WASHER,LOCK
5315-00-252-6003INTERCHANGEABLE
PIN,STRAIGHT,HEADED
1904
5930-00-356-8129INTERCHANGEABLE
SWITCH,PUSH
4320-00-359-9269INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
1904
3110-00-406-6067INTERCHANGEABLE
BEARING,BALL,ANNULAR
68-423508
3130-00-441-7588INTERCHANGEABLE
CAP,PILLOW BLOCK
1904
2520-00-654-8227INTERCHANGEABLE
POWER TAKEOFF,TRANSMISSION
1904
5120-01-144-5327INTERCHANGEABLE
SOCKET,SOCKET WRENCH
ANS1904A
8415-01-170-5076INTERCHANGEABLE
VEST,COOLING
1904

Frequently Asked Questions

What is NSN 5950-01-186-0193?

NSN 5950-01-186-0193 is a Reactor, manufactured by Standard Industries, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-186-0193?

NSN 5950-01-186-0193 has 2 cross-referenced part numbers: 1034B9002-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 1904 (Standard Industries).

What NSN replaces 5950-01-186-0193?

There are 12 known substitutes for 5950-01-186-0193: 5940-00-050-2308, 5340-00-085-3166, 5310-00-187-8595 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1904?

Key specifications for 1904: Body Length: 2.870 INCHES NOMINAL IN; Reliability Indicator: NOT ESTABLISHED; Frequency Rating: 40.0 HERTZ NOMINAL AND 800.0 HERTZ NOMINAL SINGLE COMPONENT; Body Height: 2.000 INCHES NOMINAL IN. 20 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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