PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30933Reactor

Naval Ship Systems Command · NSN 5950-00-156-2139 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-156-2139 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-156-2139. Primary manufacturer part number: 30933.
Features
  • Reactor — FSC 5950
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Body Height: 4.125 INCHES NOMINAL IN
  • Body Width: 2.750 INCHES NOMINAL IN
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-156-2139, 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 Naval Ship Systems Command. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, 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
NSN5950-00-156-2139
Primary Part Number30933
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Thread Quantity Per Inch32 SINGLE GROUP
Body Height4.125 INCHES NOMINAL IN
Body Width2.750 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
DC Resistance Rating in Ohms150.000 SINGLE COMPONENT SINGLE WINDING
Winding Operating Current150.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Length2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance Rating10.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 STANDOFF, SOLDER LUG
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length3.500 INCHES NOMINAL IN
Inductance TypeFIXED
Inclosure TypeFULLY INCLOSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-100-0317472 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3020-00-735-3809GF90 INTERCHANGEABLE
Gear,spur
Wisconsin Motors, Llc
4820-01-136-7604 INTERCHANGEABLE
Disk,valve
5365-01-160-471730933 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
6210-01-314-796930933 INTERCHANGEABLE
Light,indicator
Forenta Lp
5330-01-421-044930933 INTERCHANGEABLE
Retainer,packing
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
A1011301 Itt Industries Inc Itt Aerospace Communications Div East (USA)
B1011658A Itt Industries Inc Itt Aerospace Communications Div East (USA)
A1011301 L3harris Technologies, Inc. Dba Harris Corporation (USA)
30933 PRIMARY Naval Ship Systems Command (USA)
B1011658A L3harris Technologies, Inc. Dba Harris Corporation (USA)
Related Parts
3110-00-100-0317INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
472
3020-00-735-3809INTERCHANGEABLE
GEAR,SPUR
GF90
4820-01-136-7604INTERCHANGEABLE
DISK,VALVE
5365-01-160-4717INTERCHANGEABLE
SHIM
30933
6210-01-314-7969INTERCHANGEABLE
LIGHT,INDICATOR
30933
5330-01-421-0449INTERCHANGEABLE
RETAINER,PACKING
30933

Frequently Asked Questions

What is NSN 5950-00-156-2139?

NSN 5950-00-156-2139 is a Reactor, manufactured by Naval Ship Systems Command, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-156-2139?

NSN 5950-00-156-2139 has 5 cross-referenced part numbers: A1011301 (Itt Industries Inc Itt Aerospace Communications Div East), B1011658A (Itt Industries Inc Itt Aerospace Communications Div East), A1011301 (L3harris Technologies, Inc. Dba Harris Corporation), 30933 (Naval Ship Systems Command), B1011658A (L3harris Technologies, Inc. Dba Harris Corporation).

What NSN replaces 5950-00-156-2139?

There are 6 known substitutes for 5950-00-156-2139: 3110-00-100-0317, 3020-00-735-3809, 4820-01-136-7604 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30933?

Key specifications for 30933: Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING; Nominal Thread Size: 0.164 INCHES SINGLE GROUP IN; Thread Quantity Per Inch: 32 SINGLE GROUP; Body Height: 4.125 INCHES NOMINAL IN. 19 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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