PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B400Circuit Card Assembly

Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan · NSN 5998-01-455-5701 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-455-5701 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-455-5701. Primary manufacturer part number: B400.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 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 5998-01-455-5701, 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. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-455-5701
Primary Part NumberB400
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerLockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeVH
Weight2.2000 lbs
Cube0.3877 cu ft
Verified Substitutes 8
5999-00-289-9878301-4498048PC20 SUCCESSOR
Clamp,electrical
Naval Sea Systems Command
5999-00-500-9344B40 INTERCHANGEABLE
Heater,thermal Release
Schneider Electric Usa, Inc. Dba Schneider Electric
5975-00-681-4728 INTERCHANGEABLE
Bushing,electrical Conduit
7920-01-200-7218B-400 INTERCHANGEABLE
Brush,wire,scratch
Ampco Partners, Ltd. Dba Ampco Safety Tools
5955-01-200-8287CY05-01 INTERCHANGEABLE
Crystal Unit,quartz
Eldec Aerospace Corp
6510-01-367-5273B400 INTERCHANGEABLE
Adhesive Liquid,surgical
Factor II, Inc. Dba Factor II Inc
1740-01-442-4321 INTERCHANGEABLE
Tractor,wheeled,aircraft Towing
5975-01-561-2539 INTERCHANGEABLE
Bushing,electrical Conduit
Cross-Reference Index
Part NumberManufacturer
7381555-05 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
B400 PRIMARY Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
Related Parts
5999-00-289-9878SUCCESSOR
CLAMP,ELECTRICAL
301-4498048PC20
5999-00-500-9344INTERCHANGEABLE
HEATER,THERMAL RELEASE
B40
5975-00-681-4728INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
7920-01-200-7218INTERCHANGEABLE
BRUSH,WIRE,SCRATCH
B-400
5955-01-200-8287INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
CY05-01
6510-01-367-5273INTERCHANGEABLE
ADHESIVE LIQUID,SURGICAL
B400
1740-01-442-4321INTERCHANGEABLE
TRACTOR,WHEELED,AIRCRAFT TOWING
5975-01-561-2539INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT

Frequently Asked Questions

What is NSN 5998-01-455-5701?

NSN 5998-01-455-5701 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 5998-01-455-5701?

NSN 5998-01-455-5701 has 2 cross-referenced part numbers: 7381555-05 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), B400 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan).

What NSN replaces 5998-01-455-5701?

There are 8 known substitutes for 5998-01-455-5701: 5999-00-289-9878, 5999-00-500-9344, 5975-00-681-4728 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B400?

Key specifications for B400: End Item Identification: ELECTRONIC COMPONENTS ASSEMBLY; End Item Identification: ELECTRONIC COMPONENTS ASSEMBLY. 2 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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