PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4TB8FTerminal Board

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5940-00-500-5378 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-00-500-5378 — this item is cataloged by the U.S. Government under National Stock Number 5940-00-500-5378. Primary manufacturer part number: 4TB8F.
Features
  • Terminal Board — FSC 5940
  • Mounting Slot Width: 0.198 INCHES IN
  • Board Height Excluding Terminals: 0.781 INCHES IN
  • Board Overall Width: 1.812 INCHES IN
  • Material: PLASTIC POLYESTER AND GLASS FIBER BOARD
  • Material: COPPER ALLOY 670 TERMINALS
  • Material Document and Classification: QQ-B728,CLASS B FED SPEC SINGLE MATERIAL RESPONSE TERMINALS
  • Distance From Left Edge of Terminal Board to Center of First Mounting Facility: 0.250 INCHES IN
Applications
  • Applications requiring Plastic Polyester and Glass Fiber Board construction
General Description

The Terminal Board, cataloged under National Stock Number 5940-00-500-5378, is classified within Federal Supply Class 5940 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5940-00-500-5378
Primary Part Number4TB8F
Item NameTerminal Board
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Mounting Slot Width0.198 INCHES IN
Board Height Excluding Terminals0.781 INCHES IN
Board Overall Width1.812 INCHES IN
MaterialPLASTIC POLYESTER AND GLASS FIBER BOARD
MaterialCOPPER ALLOY 670 TERMINALS
Material Document and ClassificationQQ-B728,CLASS B FED SPEC SINGLE MATERIAL RESPONSE TERMINALS
Distance From Left Edge of Terminal Board to Center of First Mounting Facility0.250 INCHES IN
Distance From Bottom Edge of Terminal Board to Center of Mounting Hole0.906 INCHES IN
Base Thickness0.375 INCHES IN
Nonfeedthru Terminal Type599 SINGLE
Material Document and ClassificationMIL-M-14,TYPE MAI-60 MIL SPEC SINGLE MATERIAL RESPONSE BOARD
Board Overall Length3.375 INCHES IN
Terminal Row Quantity2
Center to Center Distance Between Terminals0.531 INCHES IN
Distance Between Terminal Row Centers0.812 INCHES IN
Current Rating in Amps40.0
Dielectric Withstanding Voltage in Volts2200.0
Center to Center Distance Between Mounting Facilities Parallel to Length2.875 INCHES IN
Terminal DesignNONFEEDTHRU
Board Overall Height0.844 INCHES IN
Nonfeedthru Terminal Quantity8 SINGLE
Mounting Facility Type and Quantity2 SLOT
Terminal Pattern ArrangementMULTI-ROW
Board ConstructionHOLLOW CONSTRUCTION WITHOUT INSULATED STRIP
Body StyleBARRIER TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5940-00-502-8470 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
4TB8F Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
303-6078896 REV Naval Sea Systems Command (USA)
9000S6505-73214PC28 Naval Ship Systems Command (USA)
1298-20-D FIND 16 Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA)
AA59125/10-4TB8 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59125/10 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MIL-T-55164/10 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
564101-28 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
4TB8 Dialight Corporation (USA)
43-020-503 Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil (USA)
4TB08F Regal Beloit America, Inc (USA)
Related Parts
5940-00-502-8470INTERCHANGEABLE
TERMINAL BOARD

Frequently Asked Questions

What is NSN 5940-00-500-5378?

NSN 5940-00-500-5378 is a Terminal Board, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5940 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5940-00-500-5378?

NSN 5940-00-500-5378 has 11 cross-referenced part numbers: 4TB8F (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 303-6078896 REV (Naval Sea Systems Command), 9000S6505-73214PC28 (Naval Ship Systems Command), 1298-20-D FIND 16 (Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil), AA59125/10-4TB8 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 5940-00-500-5378?

There is 1 known substitute for 5940-00-500-5378: 5940-00-502-8470. Verify interchangeability with system specifications before substitution.

What are the specifications of 4TB8F?

Key specifications for 4TB8F: Mounting Slot Width: 0.198 INCHES IN; Board Height Excluding Terminals: 0.781 INCHES IN; Board Overall Width: 1.812 INCHES IN; Material: PLASTIC POLYESTER AND GLASS FIBER BOARD. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5940-00-500-5378 still in active supply?

NSN 5940-00-500-5378 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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