PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0N377879-3Reactor

National Security Agency · NSN 5950-01-243-8252 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-243-8252 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-243-8252. Primary manufacturer part number: 0N377879-3.
Features
  • Reactor — FSC 5950
  • 2 verified cross-references
  • Primary manufacturer: National Security Agency
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-243-8252, 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 National Security Agency. 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.

Catalog Facts
Item NameReactor
FSC / FSG5950 — No Item Name Available (FSG 59)
ManufacturersRobert M. Hadley Company, Inc. (CAGE 72964); National Security Agency (CAGE 98230)
Technical Specifications
ParameterValue
NSN5950-01-243-8252
Primary Part Number0N377879-3
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNational Security Agency
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6130-00-232-6074S1315048 INTERCHANGEABLE
Rectifier,metallic
Westinghouse Electric Corp
6520-00-524-155009-0392 INTERCHANGEABLE
Elevator and Retractor,dental
Biomet Microfixation, Llc Div Biomet Microfixation
5306-00-771-25487712548 INTERCHANGEABLE
Bolt,ribbed Shoulder
U S Army Tank Automotive Command Amsta-Im-Mm
5325-00-951-04539174536-5 INTERCHANGEABLE
Stud,turnlock Fastener
Us Army Aviation and Missile Command
4820-01-110-720107208001130 INTERCHANGEABLE
Dog,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5935-01-145-7219 INTERCHANGEABLE
Adapter,connector
4820-01-146-888007213002130 INTERCHANGEABLE
Body,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5325-01-188-974420340 INTERCHANGEABLE
Insert,screw Thread
Moog Inc. Dba Ampac-Isp Corp
5360-01-199-615720340 INTERCHANGEABLE
Spring,helical,compression
Twg Canada Consolidated Inc
6685-01-319-6679 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
20340 Robert M. Hadley Company, Inc. (USA)
0N377879-3 PRIMARY National Security Agency (USA)
Related Parts
6130-00-232-6074INTERCHANGEABLE
RECTIFIER,METALLIC
S1315048
6520-00-524-1550INTERCHANGEABLE
ELEVATOR AND RETRACTOR,DENTAL
09-0392
5306-00-771-2548INTERCHANGEABLE
BOLT,RIBBED SHOULDER
7712548
5325-00-951-0453INTERCHANGEABLE
STUD,TURNLOCK FASTENER
9174536-5
4820-01-110-7201INTERCHANGEABLE
DOG,VALVE
07208001130
5935-01-145-7219INTERCHANGEABLE
ADAPTER,CONNECTOR
4820-01-146-8880INTERCHANGEABLE
BODY,VALVE
07213002130
5325-01-188-9744INTERCHANGEABLE
INSERT,SCREW THREAD
20340
5360-01-199-6157INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20340
6685-01-319-6679INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5365-01-355-9455INTERCHANGEABLE
SPACER,PLATE
1650-01-388-7823INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
20340

Frequently Asked Questions

What is NSN 5950-01-243-8252?

NSN 5950-01-243-8252 is a Reactor, manufactured by National Security Agency, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-243-8252?

NSN 5950-01-243-8252 has 2 cross-referenced part numbers: 20340 (Robert M. Hadley Company, Inc.), 0N377879-3 (National Security Agency).

What NSN replaces 5950-01-243-8252?

There are 12 known substitutes for 5950-01-243-8252: 6130-00-232-6074, 6520-00-524-1550, 5306-00-771-2548 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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