PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

24521Extender Card,electronic Test

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5998-01-343-5563 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-343-5563 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-343-5563. Primary manufacturer part number: 24521.
Features
  • Extender Card,electronic Test — FSC 5998
  • 1 verified cross-reference
  • Primary manufacturer: Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
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 5998-01-343-5563, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5998-01-343-5563
Primary Part Number24521
Item NameExtender Card,electronic Test
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
8145-00-111-318113579 INTERCHANGEABLE
Shipping and Storag
Naval Inventory Control Point
5342-01-176-936810512737 INTERCHANGEABLE
Clamp
General Dynamics Land Systems Canadacorp
3020-01-192-606224521 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
2910-01-214-154924521 INTERCHANGEABLE
Base Assembly
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6240-01-479-2840 INTERCHANGEABLE
Lamp,fluorescent
5915-01-506-52212452-1 INTERCHANGEABLE
Filter,low Pass
Kr Electronics Inc
Cross-Reference Index
Part NumberManufacturer
24521 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
8145-00-111-3181INTERCHANGEABLE
SHIPPING AND STORAG
13579
5342-01-176-9368INTERCHANGEABLE
CLAMP
10512737
3020-01-192-6062INTERCHANGEABLE
GEAR RACK
24521
2910-01-214-1549INTERCHANGEABLE
BASE ASSEMBLY
24521
6240-01-479-2840INTERCHANGEABLE
LAMP,FLUORESCENT
5915-01-506-5221INTERCHANGEABLE
FILTER,LOW PASS
2452-1

Frequently Asked Questions

What is NSN 5998-01-343-5563?

NSN 5998-01-343-5563 is a Extender Card,electronic Test, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-343-5563?

NSN 5998-01-343-5563 has 1 cross-referenced part number: 24521 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 5998-01-343-5563?

There are 6 known substitutes for 5998-01-343-5563: 8145-00-111-3181, 5342-01-176-9368, 3020-01-192-6062 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 24521?

Key specifications for 24521: End Item Identification: EXTENDER CARD,ELECTRONIC TEST,USED ON SMART SYSTEM MEST LEVEL 3 P/N24840; End Item Identification: EXTENDER CARD,ELECTRONIC TEST,USED ON SMART SYSTEM MEST LEVEL 3 P/N24840. 2 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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