PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51921-1Printed Wiring Board

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 5998-00-003-8771 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-003-8771 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-003-8771. Primary manufacturer part number: 51921-1.
Features
  • Printed Wiring Board — FSC 5998
  • 1 verified cross-reference
  • Primary manufacturer: L3harris Technologies, Inc. Div Space and Airborne Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Printed Wiring Board, cataloged under National Stock Number 5998-00-003-8771, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NamePrinted Wiring Board
FSC / FSG5998 — Circuit Card Assembly (FSG 59)
ManufacturersL3harris Technologies, Inc. Div Space and Airborne Systems (CAGE 82340)
Technical Specifications
ParameterValue
NSN5998-00-003-8771
Primary Part Number51921-1
Item NamePrinted Wiring Board
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 2
2840-00-116-1343640463 INTERCHANGEABLE
Tube Assembly,fuel
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
3110-00-191-0502MS19065-29 INTERCHANGEABLE
Roller,bearing
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
51921-1 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
2840-00-116-1343INTERCHANGEABLE
TUBE ASSEMBLY,FUEL
640463
3110-00-191-0502INTERCHANGEABLE
ROLLER,BEARING
MS19065-29

Frequently Asked Questions

What is NSN 5998-00-003-8771?

NSN 5998-00-003-8771 is a Printed Wiring Board, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-003-8771?

NSN 5998-00-003-8771 has 1 cross-referenced part number: 51921-1 (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 5998-00-003-8771?

There are 2 known substitutes for 5998-00-003-8771: 2840-00-116-1343, 3110-00-191-0502. Verify interchangeability with system specifications before substitution.

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