PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B045Circuit Card Assembly

Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan · NSN 5998-01-439-6116 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-439-6116 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-439-6116. Primary manufacturer part number: B045.
Features
  • Circuit Card Assembly — FSC 5998
  • Criticality Code Justification: FEAT
  • Criticality Code Justification: FEAT
  • 3 verified cross-references
  • Primary manufacturer: Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-439-6116, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-439-6116
Primary Part NumberB045
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerLockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
StatusACTIVE
Criticality Code JustificationFEAT
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeVH
Verified Substitutes 2
5310-01-145-6858B045 INTERCHANGEABLE
Nut,special
Circor Naval Solutions Llc Dba Warren Pumps
5330-01-145-6887 INTERCHANGEABLE
Seal,plain Encased
Cross-Reference Index
Part NumberManufacturer
B045 PRIMARY Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
B045 PRIMARY Lockheed Martin Corporation Div Rms - Manassas (USA)
9700741-001-Q70 Drs C3 & Aviation Company Dba Fka Drs Electronic Systems (USA)
Related Parts
5310-01-145-6858INTERCHANGEABLE
NUT,SPECIAL
B045
5330-01-145-6887INTERCHANGEABLE
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 5998-01-439-6116?

NSN 5998-01-439-6116 is a Circuit Card Assembly, manufactured by Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-439-6116?

NSN 5998-01-439-6116 has 3 cross-referenced part numbers: B045 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), B045 (Lockheed Martin Corporation Div Rms - Manassas), 9700741-001-Q70 (Drs C3 & Aviation Company Dba Fka Drs Electronic Systems).

What NSN replaces 5998-01-439-6116?

There are 2 known substitutes for 5998-01-439-6116: 5310-01-145-6858, 5330-01-145-6887. Verify interchangeability with system specifications before substitution.

What are the specifications of B045?

Key specifications for B045: Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS; End Item Identification: CONSOLE,COMBAT SYS; Criticality Code Justification: FEAT; Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS. 6 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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