PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51446Circuit Card Assembly

Espey Mfg. & Electronics Corp. · NSN 5998-00-421-5841 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-421-5841 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-421-5841. Primary manufacturer part number: 51446.
Features
  • Circuit Card Assembly — FSC 5998
  • Criticality Code Justification: CBBL
  • Features Provided: ELECTROSTATIC SENSITIVE
  • Criticality Code Justification: CBBL
  • Features Provided: ELECTROSTATIC SENSITIVE
  • 2 verified cross-references
  • Primary manufacturer: Espey Mfg. & Electronics Corp.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-00-421-5841, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Espey Mfg. & Electronics Corp.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-421-5841
Primary Part Number51446
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerEspey Mfg. & Electronics Corp.
StatusACTIVE
Criticality Code JustificationCBBL
Features ProvidedELECTROSTATIC SENSITIVE
Criticality Code JustificationCBBL
Features ProvidedELECTROSTATIC SENSITIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeT
Unit of IssueEA
SMR CodeVT
Weight1.6000 lbs
Cube0.1772 cu ft
Verified Substitutes 7
5330-00-132-474151446 INTERCHANGEABLE
Gasket
Waterous Company
5136-00-156-3047 INTERCHANGEABLE
Chasers,thread Cutting
5330-00-582-379021108 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5305-01-049-171551446 INTERCHANGEABLE
Screw,cap,hexagon Head
Paccar Winch Inc Dba Paccar Winch Division
8345-01-153-9669 INTERCHANGEABLE
Guidon
5955-01-308-74315-1446 INTERCHANGEABLE
Crystal Unit,quartz
Bird Electronic Corporation Div Bird Electronic Corp
8345-01-451-5855 INTERCHANGEABLE
Guidon
Cross-Reference Index
Part NumberManufacturer
51446 Espey Mfg. & Electronics Corp. (USA)
51446 Espey Mfg and Electronics Corp (USA)
Related Parts
5330-00-132-4741INTERCHANGEABLE
GASKET
51446
5136-00-156-3047INTERCHANGEABLE
CHASERS,THREAD CUTTING
5330-00-582-3790INTERCHANGEABLE
SEAL,PLAIN ENCASED
21108
5305-01-049-1715INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
51446
8345-01-153-9669INTERCHANGEABLE
GUIDON
5955-01-308-7431INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
5-1446
8345-01-451-5855INTERCHANGEABLE
GUIDON

Frequently Asked Questions

What is NSN 5998-00-421-5841?

NSN 5998-00-421-5841 is a Circuit Card Assembly, manufactured by Espey Mfg. & Electronics Corp., classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-421-5841?

NSN 5998-00-421-5841 has 2 cross-referenced part numbers: 51446 (Espey Mfg. & Electronics Corp.), 51446 (Espey Mfg and Electronics Corp).

What NSN replaces 5998-00-421-5841?

There are 7 known substitutes for 5998-00-421-5841: 5330-00-132-4741, 5136-00-156-3047, 5330-00-582-3790 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51446?

Key specifications for 51446: End Item Identification: AN/APN-169/-130/-141 RADAR SETS; Criticality Code Justification: CBBL; Overall Width: 2.750 INCHES NOMINAL IN; Overall Length: 9.000 INCHES NOMINAL IN. 12 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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