PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L518002503Reactor

Lockheed Martin Librascope Corporation · NSN 5950-00-811-4520 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-811-4520 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-811-4520. Primary manufacturer part number: L518002503.
Features
  • Reactor — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
  • Inclosure Type: HERMETICALLY SEALED
  • DC Resistance Rating in Ohms: 5.000 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 5950-00-811-4520, 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 Lockheed Martin Librascope Corporation. Government technical data includes 19 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-811-4520
Primary Part NumberL518002503
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Librascope Corporation
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity2 TAB, SOLDER LUG
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Inclosure TypeHERMETICALLY SEALED
DC Resistance Rating in Ohms5.000 SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height2.437 INCHES NOMINAL IN
Winding Operating Current500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Body Length1.937 INCHES NOMINAL IN
Body Width1.812 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width0.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance TypeFIXED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance Rating150.00 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2520-00-352-5509 INTERCHANGEABLE
Plate
4410-00-377-9862 INTERCHANGEABLE
Retarder,tube
5915-00-501-3317 INTERCHANGEABLE
Filter,radio Frequency Interfere
6635-00-641-3489C-335 INTERCHANGEABLE
Mold,concrete Testing,slump Cone
Durham Geo-Enterprises Inc Dba Durham Geo-Enterprises Inc
6545-01-512-1658C335 INTERCHANGEABLE
Ultrasound Set
Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
Cross-Reference Index
Part NumberManufacturer
2042190 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
C335 Genisco Filter Corp (USA)
L518002503 PRIMARY Lockheed Martin Librascope Corporation (USA)
C335 Spectrum Control, Inc. Div Api Technologies - Eis/wesson (USA)
Related Parts
2520-00-352-5509INTERCHANGEABLE
PLATE
4410-00-377-9862INTERCHANGEABLE
RETARDER,TUBE
5915-00-501-3317INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
6635-00-641-3489INTERCHANGEABLE
MOLD,CONCRETE TESTING,SLUMP CONE
C-335
6545-01-512-1658INTERCHANGEABLE
ULTRASOUND SET
C335

Frequently Asked Questions

What is NSN 5950-00-811-4520?

NSN 5950-00-811-4520 is a Reactor, manufactured by Lockheed Martin Librascope Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-811-4520?

NSN 5950-00-811-4520 has 4 cross-referenced part numbers: 2042190 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), C335 (Genisco Filter Corp), L518002503 (Lockheed Martin Librascope Corporation), C335 (Spectrum Control, Inc. Div Api Technologies - Eis/wesson).

What NSN replaces 5950-00-811-4520?

There are 5 known substitutes for 5950-00-811-4520: 2520-00-352-5509, 4410-00-377-9862, 5915-00-501-3317 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L518002503?

Key specifications for L518002503: Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 2 TAB, SOLDER LUG; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP. 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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