PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

821Terminal Board

Keystone Electronics Corp · NSN 5940-00-188-5440 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-00-188-5440 — this item is cataloged by the U.S. Government under National Stock Number 5940-00-188-5440. Primary manufacturer part number: 821.
Features
  • Terminal Board — FSC 5940
  • 17 verified cross-references
  • Primary manufacturer: Keystone Electronics Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Terminal Board, cataloged under National Stock Number 5940-00-188-5440, 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 Keystone Electronics Corp. This item has 17 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameTerminal Board
FSC / FSG5940 — No Item Name Available (FSG 59)
ManufacturersFederal Screw Products, Inc. (CAGE 73734); Dialight Corporation (CAGE 83330); Air Track Mfg Corp (CAGE 00750); Cinch Connectivity Solutions Inc. (CAGE 71785); Eby Sales Co Inc of New York (CAGE 00629)
Technical Specifications
ParameterValue
NSN5940-00-188-5440
Primary Part Number821
Item NameTerminal Board
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerKeystone Electronics Corp
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3610-00-057-2217 INTERCHANGEABLE
Stud
5961-00-082-4073 INTERCHANGEABLE
Semiconductor Device,diode
3110-00-100-0342 INTERCHANGEABLE
Cup,tapered Roller Bearing
3110-00-101-09976B3797 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Caterpillar Inc Div Caterpillar Defense
5330-00-154-090311800 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5965-00-161-941946264 INTERCHANGEABLE
Handset
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
5977-00-194-9692854 INTERCHANGEABLE
Brush,electrical Contact
Meggitt (new Hampshire), Inc
5930-00-222-723213011-1 INTERCHANGEABLE
Switch,rotary
Drs Advanced Isr, Llc
5940-00-223-84811066 INTERCHANGEABLE
Terminal Board
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4910-00-247-1372T-40 INTERCHANGEABLE
Detector,engine Bearing Oil Leak
Federal-Mogul Corp Government Sales Dept
Cross-Reference Index
Part NumberManufacturer
130111 Federal Screw Products, Inc. (USA)
869 Dialight Corporation (USA)
A2972REVD Air Track Mfg Corp (USA)
006-00415-2 Cinch Connectivity Solutions Inc. (USA)
54 Cinch Connectivity Solutions Inc. (USA)
T40 Eby Sales Co Inc of New York (USA)
332-11-06-088 Cinch Connectivity Solutions Inc. (USA)
332-14-06-032 Cinch Connectivity Solutions Inc. (USA)
1540 Cinch Connectivity Solutions Inc. (USA)
8192326 Us Army Aviation and Missile Command (USA)
821 PRIMARY Keystone Electronics Corp (USA)
1386B Birnbach Co Inc (USA)
TS-10 Tattnall, County of Dba Tattnall County Sheriffs Office (USA)
854 Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
1540A Cinch Connectivity Solutions Inc. (USA)
TS-139 Tattnall, County of Dba Tattnall County Sheriffs Office (USA)
854 Dialight Corporation (USA)
Related Parts
3610-00-057-2217INTERCHANGEABLE
STUD
5961-00-082-4073INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3110-00-100-0342INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3110-00-101-0997INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
6B3797
5330-00-154-0903INTERCHANGEABLE
SEAL,PLAIN ENCASED
11800
5965-00-161-9419INTERCHANGEABLE
HANDSET
46264
5977-00-194-9692INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
854
5930-00-222-7232INTERCHANGEABLE
SWITCH,ROTARY
13011-1
5940-00-223-8481INTERCHANGEABLE
TERMINAL BOARD
1066
4910-00-247-1372INTERCHANGEABLE
DETECTOR,ENGINE BEARING OIL LEAK
T-40
5930-00-249-4525INTERCHANGEABLE
SWITCH,THERMOSTATIC
5935-00-258-6314INTERCHANGEABLE
PLUG,TIP
869

Frequently Asked Questions

What is NSN 5940-00-188-5440?

NSN 5940-00-188-5440 is a Terminal Board, manufactured by Keystone Electronics Corp, classified under FSC 5940 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5940-00-188-5440?

NSN 5940-00-188-5440 has 17 cross-referenced part numbers: 130111 (Federal Screw Products, Inc.), 869 (Dialight Corporation), A2972REVD (Air Track Mfg Corp), 006-00415-2 (Cinch Connectivity Solutions Inc.), 54 (Cinch Connectivity Solutions Inc.) and 12 more.

What NSN replaces 5940-00-188-5440?

There are 12 known substitutes for 5940-00-188-5440: 3610-00-057-2217, 5961-00-082-4073, 3110-00-100-0342 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 5940-00-188-5440 still in active supply?

NSN 5940-00-188-5440 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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