PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

526-1Circuit Card Assembly

Marc Alan Group the, Inc · NSN 5998-00-425-7638 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-425-7638 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-425-7638. Primary manufacturer part number: 526-1.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Marc Alan Group the, 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 5998-00-425-7638, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Marc Alan Group the, Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-425-7638
Primary Part Number526-1
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerMarc Alan Group the, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-056-3450 (526)
HAZMATNo
Shelf Life Code0
Criticality CodeT
Unit of IssueEA
SMR CodeVT
Weight0.5000 lbs
Cube0.0580 cu ft
Verified Substitutes 12
6625-00-056-3450526 SUCCESSOR
Plate Assembly
Kay Elemetrics Corporation
6625-01-642-3708526 SUCCESSOR
Calibrator,range Indicator
Krohn-Hite Corp
5950-00-240-6940 INTERCHANGEABLE
Transformer,audio Frequency
5935-00-350-1834SMB657092 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-359-133411EJT4 INTERCHANGEABLE
Washer,key
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
2990-00-588-41311912 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
5935-00-642-36525261 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
2910-00-737-6914 INTERCHANGEABLE
Rotor Fuel Pump
5330-00-765-2921G8-061033 INTERCHANGEABLE
Gasket
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
5935-00-982-9711 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
526-1 PRIMARY Marc Alan Group the, Inc (USA)
526 Marc Alan Group the, Inc (USA)
Related Parts
SUCCESSOR 6625-00-056-3450 Plate Assembly · 526
6625-01-642-3708SUCCESSOR
CALIBRATOR,RANGE INDICATOR
526
5950-00-240-6940INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5935-00-350-1834INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SMB657092
5310-00-359-1334INTERCHANGEABLE
WASHER,KEY
11EJT4
2990-00-588-4131INTERCHANGEABLE
MUFFLER,EXHAUST
1912
5935-00-642-3652INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5261
2910-00-737-6914INTERCHANGEABLE
ROTOR FUEL PUMP
5330-00-765-2921INTERCHANGEABLE
GASKET
G8-061033
5935-00-982-9711INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-01-012-3081INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
9390-01-021-2223INTERCHANGEABLE
TAPE,REFLECTIVE

Frequently Asked Questions

What is NSN 5998-00-425-7638?

NSN 5998-00-425-7638 is a Circuit Card Assembly, manufactured by Marc Alan Group the, Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-425-7638?

NSN 5998-00-425-7638 has 2 cross-referenced part numbers: 526-1 (Marc Alan Group the, Inc), 526 (Marc Alan Group the, Inc).

What NSN replaces 5998-00-425-7638?

There are 12 known substitutes for 5998-00-425-7638: 6625-00-056-3450, 6625-01-642-3708, 5950-00-240-6940 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 526-1?

Key specifications for 526-1: Special Features: CONN 6,PWB 1,RELAY 4;CONNECTOR MTD; Overall Width: 1.710 INCHES NOMINAL IN; End Item Identification: AUTOMATIC TEST EQPT (ATE); Part Name Assigned by Controlling Agency: TEST,STATION,FAULT ISOLATION,SPECIALLY DESIGNED ACFT. 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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