PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

140666Spark Plug

Hyster-Yale Group, Inc. · NSN 2920-00-766-5846 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-766-5846 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-766-5846. Primary manufacturer part number: 140666.
Features
  • Spark Plug — FSC 2920
  • Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
  • Nondefinitive Spec/std Data: 3 TYPE AND B CLASS
  • Width Across Flats: 0.812 INCHES NOMINAL IN
  • Reach Length: 0.375 INCHES NOMINAL IN
  • Seat Major Diameter: 0.812 INCHES MAXIMUM IN
  • Usage Design: ENGINE OTHER THAN AIRCRAFT
  • Pressure Rating: 195.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM MEAN EFFECTIVE LBS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spark Plug, cataloged under National Stock Number 2920-00-766-5846, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Hyster-Yale Group, Inc.. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2920-00-766-5846
Primary Part Number140666
Item NameSpark Plug
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerHyster-Yale Group, Inc.
StatusCANCELLED
Electrode StyleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
Nondefinitive Spec/std Data3 TYPE AND B CLASS
Width Across Flats0.812 INCHES NOMINAL IN
Reach Length0.375 INCHES NOMINAL IN
Seat Major Diameter0.812 INCHES MAXIMUM IN
Usage DesignENGINE OTHER THAN AIRCRAFT
Pressure Rating195.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM MEAN EFFECTIVE LBS
Body StyleUNSHIELDED, SOLID POST, GASKET SEAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-120-3076117855-007 INTERCHANGEABLE
Bearing,roller,needle
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4520-00-142-2541 INTERCHANGEABLE
Heating Element,electrical,nonim
5977-00-217-2455 INTERCHANGEABLE
Brush,electrical Contact
5999-00-220-3062140-666 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Technipower Llc Dba Unipower
5130-00-317-8041 INTERCHANGEABLE
Wheel,abrasive
3455-00-517-595215437 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6695-00-624-7262559-1007-01 INTERCHANGEABLE
Meter Movement
Acron Aviation, Inc.
5310-00-836-4430B4-5 INTERCHANGEABLE
Washer,flat
Roller Bearing Co of America, Inc Div Pic Design
5310-00-882-1858B45 INTERCHANGEABLE
Nut,plain,round
Arriflex Corp
3030-00-906-1875B45 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
Cross-Reference Index
Part NumberManufacturer
140666 Hyster-Yale Group, Inc. (USA)
UJ8 Champion Aerospace Llc (USA)
7UJ8 Navistar Intl Corp Truck Br Ohio Plant (USA)
B45 General Motors Llc Dba General Motors Llc (USA)
WS506 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B45 General Motors Llc Dba General Motors (USA)
UJ8 Navistar International Corporation Dba Navistar (USA)
321716R91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
Related Parts
3110-00-120-3076INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
117855-007
4520-00-142-2541INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5977-00-217-2455INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5999-00-220-3062INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
140-666
5130-00-317-8041INTERCHANGEABLE
WHEEL,ABRASIVE
3455-00-517-5952INTERCHANGEABLE
CUTTER,MILLING,END
15437
6695-00-624-7262INTERCHANGEABLE
METER MOVEMENT
559-1007-01
5310-00-836-4430INTERCHANGEABLE
WASHER,FLAT
B4-5
5310-00-882-1858INTERCHANGEABLE
NUT,PLAIN,ROUND
B45
3030-00-906-1875INTERCHANGEABLE
BELT,V
B45
5999-01-095-1748INTERCHANGEABLE
HEATER,THERMAL RELEASE
3930-01-312-1602INTERCHANGEABLE
FORK,LIFT TRUCK
A3X4PW/B

Frequently Asked Questions

What is NSN 2920-00-766-5846?

NSN 2920-00-766-5846 is a Spark Plug, manufactured by Hyster-Yale Group, Inc., classified under FSC 2920 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2920-00-766-5846?

NSN 2920-00-766-5846 has 8 cross-referenced part numbers: 140666 (Hyster-Yale Group, Inc.), UJ8 (Champion Aerospace Llc), 7UJ8 (Navistar Intl Corp Truck Br Ohio Plant), B45 (General Motors Llc Dba General Motors Llc), WS506 (Federal Specifications Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 2920-00-766-5846?

There are 12 known substitutes for 2920-00-766-5846: 3110-00-120-3076, 4520-00-142-2541, 5977-00-217-2455 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 140666?

Key specifications for 140666: Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4); Nondefinitive Spec/std Data: 3 TYPE AND B CLASS; Special Features: SUPPORTS GRUMMAN A-10 AIRCRAFT; Width Across Flats: 0.812 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2920-00-766-5846 still in active supply?

NSN 2920-00-766-5846 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.
PartsTable Design LLC · partstable.com