PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MARC70-SR343Circuit Card Assembly

Sandia Aerospace Corporation · NSN 5998-01-605-8355 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-605-8355 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-605-8355. Primary manufacturer part number: MARC70-SR343.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: Sandia Aerospace Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-605-8355, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Sandia Aerospace Corporation. This item has 2 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN5998-01-605-8355
Primary Part NumberMARC70-SR343
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerSandia Aerospace Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-763-06553050-0001 INTERCHANGEABLE
Washer,flat
Keysight Technologies Inc
5935-00-781-74062260 INTERCHANGEABLE
Connector,receptacle,electrical
Sv Microwave, Inc. Div Sv Microwave
Cross-Reference Index
Part NumberManufacturer
MARC70-SR343 PRIMARY Sandia Aerospace Corporation (USA)
305000-01 PRIMARY Sandia Aerospace Corporation (USA)
Related Parts
5310-00-763-0655INTERCHANGEABLE
WASHER,FLAT
3050-0001
5935-00-781-7406INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2260

Frequently Asked Questions

What is NSN 5998-01-605-8355?

NSN 5998-01-605-8355 is a Circuit Card Assembly, manufactured by Sandia Aerospace Corporation, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-605-8355?

NSN 5998-01-605-8355 has 2 cross-referenced part numbers: MARC70-SR343 (Sandia Aerospace Corporation), 305000-01 (Sandia Aerospace Corporation).

What NSN replaces 5998-01-605-8355?

There are 2 known substitutes for 5998-01-605-8355: 5310-00-763-0655, 5935-00-781-7406. Verify interchangeability with system specifications before substitution.

What are the specifications of MARC70-SR343?

Key specifications for MARC70-SR343: Part Name Assigned by Controlling Agency: MIL QUALIFIED SWITCHING MODULE; Overall Height: 3.5 INCHES NOMINAL IN; End Item Identification: SRU-1, SRU-5 OR SRU-10; Overall Width: 3.92 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.
PartsTable Design LLC · partstable.com