PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23403Circuit Card Assembly

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5998-01-137-0994 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-137-0994 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-137-0994. Primary manufacturer part number: 23403.
Features
  • Circuit Card Assembly — 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 Circuit Card Assembly, cataloged under National Stock Number 5998-01-137-0994, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5998-01-137-0994
Primary Part Number23403
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-639-695923403 INTERCHANGEABLE
Screw,machine
Briggs and Stratton Corp
4820-00-647-2328146-00318-1 INTERCHANGEABLE
Seat,valve
Grove Valve Operations
3455-00-971-890817614 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
4820-01-204-524511889NPC22 INTERCHANGEABLE
Seat,valve
Classic Mfg
4720-01-268-7399 INTERCHANGEABLE
Tubing Assembly,nonmetallic
5985-01-276-27072898679-6 INTERCHANGEABLE
Coupler,directional
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4940-01-451-939134015-01 INTERCHANGEABLE
Enclosure,electromagnetic Shield
Electronic Marine Systems, Inc.
4820-01-517-3083 INTERCHANGEABLE
Valve,check
5340-01-699-620223-403 INTERCHANGEABLE
Cover,access
DC Fabricators Inc
Cross-Reference Index
Part NumberManufacturer
23403 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
5305-00-639-6959INTERCHANGEABLE
SCREW,MACHINE
23403
4820-00-647-2328INTERCHANGEABLE
SEAT,VALVE
146-00318-1
3455-00-971-8908INTERCHANGEABLE
CUTTER,MILLING,END
17614
4820-01-204-5245INTERCHANGEABLE
SEAT,VALVE
11889NPC22
4720-01-268-7399INTERCHANGEABLE
TUBING ASSEMBLY,NONMETALLIC
5985-01-276-2707INTERCHANGEABLE
COUPLER,DIRECTIONAL
2898679-6
4940-01-451-9391INTERCHANGEABLE
ENCLOSURE,ELECTROMAGNETIC SHIELD
34015-01
4820-01-517-3083INTERCHANGEABLE
VALVE,CHECK
5340-01-699-6202INTERCHANGEABLE
COVER,ACCESS
23-403

Frequently Asked Questions

What is NSN 5998-01-137-0994?

NSN 5998-01-137-0994 is a Circuit Card Assembly, 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 5998-01-137-0994?

NSN 5998-01-137-0994 has 1 cross-referenced part number: 23403 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 5998-01-137-0994?

There are 9 known substitutes for 5998-01-137-0994: 5305-00-639-6959, 4820-00-647-2328, 3455-00-971-8908 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23403?

Key specifications for 23403: Special Features: DIODE 9,RESISTOR 62,TRANSISTOR 33,PRINTED WIRING BOARD 1; Special Features: DIODE 9,RESISTOR 62,TRANSISTOR 33,PRINTED WIRING BOARD 1. 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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