PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FCC-125-4-2XCircuit Card Assembly

Fischer Custom Communications Inc · NSN 5998-01-533-5749 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-533-5749 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-533-5749. Primary manufacturer part number: FCC-125-4-2X.
Features
  • Circuit Card Assembly — FSC 5998
  • Functional Description: ELECTROMAGETICALLY (EM) ISOLATED MODULE CONTAINING TRANSIENT PROTECTION DEVICES (TPDS)
  • Criticality Code Justification: AGAV
  • Functional Description: ELECTROMAGETICALLY (EM) ISOLATED MODULE CONTAINING TRANSIENT PROTECTION DEVICES (TPDS)
  • Criticality Code Justification: AGAV
  • 4 verified cross-references
  • Primary manufacturer: Fischer Custom Communications 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 5998-01-533-5749, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Fischer Custom Communications Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-533-5749
Primary Part NumberFCC-125-4-2X
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerFischer Custom Communications Inc
StatusACTIVE
Functional DescriptionELECTROMAGETICALLY (EM) ISOLATED MODULE CONTAINING TRANSIENT PROTECTION DEVICES (TPDS)
Criticality Code JustificationAGAV
Functional DescriptionELECTROMAGETICALLY (EM) ISOLATED MODULE CONTAINING TRANSIENT PROTECTION DEVICES (TPDS)
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZZ
Weight1.5000 lbs
Cube0.0127 cu ft
Verified Substitutes 3
4820-00-631-366008924140M INTERCHANGEABLE
Cock,shutoff,screw Stem
Rolls-Royce Solutions America Inc
5998-01-533-5697A-6891 INTERCHANGEABLE
Circuit Card Assembly
The Captor Corporation
5998-01-611-8449A8542 INTERCHANGEABLE
Circuit Card Assembly
The Captor Corporation
Cross-Reference Index
Part NumberManufacturer
G610927 Raytheon Company Div Corp (USA)
FCC-125-4-2X PRIMARY Fischer Custom Communications Inc (USA)
G610927-3 Raytheon Company Div Corp (USA)
A-6890 PRIMARY The Captor Corporation (USA)
Related Parts
4820-00-631-3660INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
08924140M
5998-01-533-5697INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
A-6891
5998-01-611-8449INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
A8542

Frequently Asked Questions

What is NSN 5998-01-533-5749?

NSN 5998-01-533-5749 is a Circuit Card Assembly, manufactured by Fischer Custom Communications Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-533-5749?

NSN 5998-01-533-5749 has 4 cross-referenced part numbers: G610927 (Raytheon Company Div Corp), FCC-125-4-2X (Fischer Custom Communications Inc), G610927-3 (Raytheon Company Div Corp), A-6890 (The Captor Corporation).

What NSN replaces 5998-01-533-5749?

There are 3 known substitutes for 5998-01-533-5749: 4820-00-631-3660, 5998-01-533-5697, 5998-01-611-8449. Verify interchangeability with system specifications before substitution.

What are the specifications of FCC-125-4-2X?

Key specifications for FCC-125-4-2X: Functional Description: ELECTROMAGETICALLY (EM) ISOLATED MODULE CONTAINING TRANSIENT PROTECTION DEVICES (TPDS); Criticality Code Justification: AGAV; Special Features: THIS DRAWING DEPICTS HARDNESS CRITICAL ITEMS (HCI)OR HARDNESS CRITICAL PPROCESSES (HCP). ALL CHANGES TO OR PROPOSED SUBSTITUTIONS OF HCI'S OR HCP'S MUST BE EVALUATED FOR HARDNESS IMPACTS BY THE ENGINEERING ACTIVITY RESPONSIBLEFOR SURVIVABILITY.; Part Name Assigned by Controlling Agency: TRANSIENT PROTECTION MODULE.. 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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