PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

343029-1Extender Card Kit

Raytheon Company Dba Raytheon · NSN 5999-01-121-4080 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-121-4080 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-121-4080. Primary manufacturer part number: 343029-1.
Features
  • Extender Card Kit — FSC 5999
  • 1 verified cross-reference
  • Primary manufacturer: Raytheon Company Dba Raytheon
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Extender Card Kit, cataloged under National Stock Number 5999-01-121-4080, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company Dba Raytheon. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameExtender Card Kit
FSC / FSG5999 — No Item Name Available (FSG 59)
ManufacturersRaytheon Company Dba Raytheon (CAGE 96214)
Technical Specifications
ParameterValue
NSN5999-01-121-4080
Primary Part Number343029-1
Item NameExtender Card Kit
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-624-492963718 INTERCHANGEABLE
Semiconductor Device,diode
Altra Industrial Motion Corp.
Cross-Reference Index
Part NumberManufacturer
343029-1 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
5961-00-624-4929INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
63718

Frequently Asked Questions

What is NSN 5999-01-121-4080?

NSN 5999-01-121-4080 is a Extender Card Kit, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-121-4080?

NSN 5999-01-121-4080 has 1 cross-referenced part number: 343029-1 (Raytheon Company Dba Raytheon).

What NSN replaces 5999-01-121-4080?

There is 1 known substitute for 5999-01-121-4080: 5961-00-624-4929. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com