PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2121651-301Extender Card,electronic Test

Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc · NSN 5998-01-210-2079 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-210-2079 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-210-2079. Primary manufacturer part number: 2121651-301.
Features
  • Extender Card,electronic Test — FSC 5998
  • Connector Quantity: 2
  • Connector Quantity: 2
  • 3 verified cross-references
  • Primary manufacturer: Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Extender Card,electronic Test, cataloged under National Stock Number 5998-01-210-2079, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-210-2079
Primary Part Number2121651-301
Item NameExtender Card,electronic Test
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
StatusACTIVE
Connector Quantity2
Connector Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight8.0001 lbs
Cube0.8689 cu ft
Verified Substitutes 9
5310-00-274-454610505776 INTERCHANGEABLE
Washer,flat
General Dynamics Land Systems Canadacorp
2940-00-382-8003L21 INTERCHANGEABLE
Line
Honeywell International Inc Dba Honeywell Div Consumer Products Group
2040-00-388-0798 INTERCHANGEABLE
Strut
5355-00-521-6925 INTERCHANGEABLE
Dial,control
5930-00-788-31363249 INTERCHANGEABLE
Switch,rotary
Ballantine Laboratories Inc
5360-00-845-7430 INTERCHANGEABLE
Spring,helical,extension
5310-00-958-8240R54092 INTERCHANGEABLE
Nut,rotation
Neac Compressor Service Usa Inc
5975-01-480-13023249 INTERCHANGEABLE
Adapter,electrical Conduit
Heyco Inc Dba Heyco Products
4730-01-480-3473CC-0009654 INTERCHANGEABLE
Clamp,hose
Independent Rough Terrain Center Llc
Cross-Reference Index
Part NumberManufacturer
2121651-301 Hughes Missile Systems Co San Diego (USA)
2121651-301 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
3249 The Boeing Company Div Legacy Am&m (USA)
Related Parts
5310-00-274-4546INTERCHANGEABLE
WASHER,FLAT
10505776
2940-00-382-8003INTERCHANGEABLE
LINE
L21
2040-00-388-0798INTERCHANGEABLE
STRUT
5355-00-521-6925INTERCHANGEABLE
DIAL,CONTROL
5930-00-788-3136INTERCHANGEABLE
SWITCH,ROTARY
3249
5360-00-845-7430INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
5310-00-958-8240INTERCHANGEABLE
NUT,ROTATION
R54092
5975-01-480-1302INTERCHANGEABLE
ADAPTER,ELECTRICAL CONDUIT
3249
4730-01-480-3473INTERCHANGEABLE
CLAMP,HOSE
CC-0009654

Frequently Asked Questions

What is NSN 5998-01-210-2079?

NSN 5998-01-210-2079 is a Extender Card,electronic Test, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-210-2079?

NSN 5998-01-210-2079 has 3 cross-referenced part numbers: 2121651-301 (Hughes Missile Systems Co San Diego), 2121651-301 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), 3249 (The Boeing Company Div Legacy Am&m).

What NSN replaces 5998-01-210-2079?

There are 9 known substitutes for 5998-01-210-2079: 5310-00-274-4546, 2940-00-382-8003, 2040-00-388-0798 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2121651-301?

Key specifications for 2121651-301: Connector Quantity: 2; End Item Identification: B-1B; Connector Quantity: 2; End Item Identification: B-1B. 4 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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