PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

86-23Circuit Card Assembly

Symmetricom, Inc · NSN 5998-01-254-3405 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-254-3405 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-254-3405. Primary manufacturer part number: 86-23.
Features
  • Circuit Card Assembly — FSC 5998
  • Criticality Code Justification: CBBL
  • Features Provided: ELECTROSTATIC SENSITIVE
  • Criticality Code Justification: CBBL
  • Features Provided: ELECTROSTATIC SENSITIVE
  • 1 verified cross-reference
  • Primary manufacturer: Symmetricom, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-254-3405, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Symmetricom, Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-254-3405
Primary Part Number86-23
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerSymmetricom, Inc
StatusACTIVE
Criticality Code JustificationCBBL
Features ProvidedELECTROSTATIC SENSITIVE
Criticality Code JustificationCBBL
Features ProvidedELECTROSTATIC SENSITIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-00-418-2700 (8473)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 4
6145-00-418-27008473 SUCCESSOR
Cable,power,electrical
General Wire Products, Inc. Dba General Wire Products Inc
6240-00-051-4843 INTERCHANGEABLE
Lamp,incandescent
5310-00-480-8509862-0003 INTERCHANGEABLE
Nut,plain,hexagon
Cummins Power Generation Inc.
4920-01-349-92708623 INTERCHANGEABLE
Case Assembly
Becklin Holdings, Inc.
Cross-Reference Index
Part NumberManufacturer
86-23 Symmetricom, Inc (USA)
Related Parts
SUCCESSOR 6145-00-418-2700 Cable,power,electrical · 8473
6240-00-051-4843INTERCHANGEABLE
LAMP,INCANDESCENT
5310-00-480-8509INTERCHANGEABLE
NUT,PLAIN,HEXAGON
862-0003
4920-01-349-9270INTERCHANGEABLE
CASE ASSEMBLY
8623

Frequently Asked Questions

What is NSN 5998-01-254-3405?

NSN 5998-01-254-3405 is a Circuit Card Assembly, manufactured by Symmetricom, Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-254-3405?

NSN 5998-01-254-3405 has 1 cross-referenced part number: 86-23 (Symmetricom, Inc).

What NSN replaces 5998-01-254-3405?

There are 4 known substitutes for 5998-01-254-3405: 6145-00-418-2700, 6240-00-051-4843, 5310-00-480-8509 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 86-23?

Key specifications for 86-23: Criticality Code Justification: CBBL; End Item Identification: MARK IV TRANS/WET/TERM; Part Name Assigned by Controlling Agency: SYNCRO CLOCK; Special Features: PWB 1;MICRCT 26;RES 16;CAP 47;DIODE 4;TRANSFORMER 7;COIL 4;SWITCH 8. 10 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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