PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

385411 R91Spark Plug

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2920-00-050-1034 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-00-050-1034 — this item is cataloged by the U.S. Government under National Stock Number 2920-00-050-1034. Primary manufacturer part number: 385411 R91.
Features
  • Spark Plug — FSC 2920
  • Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
  • Width Across Flats: 0.812 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 2 TYPE AND B CLASS
  • Reach Length: 0.438 INCHES NOMINAL IN
  • Body Style: UNSHIELDED, SOLID POST, GASKET SEAT
  • Pressure Rating: 140.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM MEAN EFFECTIVE LBS
  • Usage Design: ENGINE OTHER THAN AIRCRAFT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spark Plug, cataloged under National Stock Number 2920-00-050-1034, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/. Government technical data includes 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2920-00-050-1034
Primary Part Number385411 R91
Item NameSpark Plug
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusACTIVE
Electrode StyleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
Width Across Flats0.812 INCHES NOMINAL IN
Nondefinitive Spec/std Data2 TYPE AND B CLASS
Reach Length0.438 INCHES NOMINAL IN
Body StyleUNSHIELDED, SOLID POST, GASKET SEAT
Pressure Rating140.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM MEAN EFFECTIVE LBS
Usage DesignENGINE OTHER THAN AIRCRAFT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
7520-00-142-93527000031087 INTERCHANGEABLE
Dispenser,pressure Sensitive Adh
3m Company
5365-00-168-3225751-003022 INTERCHANGEABLE
Ring,lifting
Nelson Stud Welding, Inc. Dba Nelson Stud Welding Inc
5935-00-280-22191JC2189-22 INTERCHANGEABLE
Backshell,electrical Connector
Westinghouse Electric Corp
6670-00-280-2396SECURA224-1S INTERCHANGEABLE
Balance,analytical
Sartorius Corporation
4520-00-378-9684H10 INTERCHANGEABLE
Heating Element,electrical,nonim
Siemens Energy and Automation Inc Siemens Furnas Controls Div
6240-00-505-6099XL678/C10 INTERCHANGEABLE
Lamp,concentrated Arc
Teledyne Uk Limited
5935-00-765-1238H10 INTERCHANGEABLE
Shell,electrical Connector
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5935-00-924-4424900285-0025-000 INTERCHANGEABLE
Shell,electrical Connector
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4940-00-994-1803420-805AAA3 INTERCHANGEABLE
Leak Detector,refrigerant Gas
Duran Distributing, Inc Dba Quality Distributing Company
5340-00-997-4448B286 INTERCHANGEABLE
Crank,hand
Arcosa Marine Components, Llc
Cross-Reference Index
Part NumberManufacturer
H10 Champion Aerospace Llc (USA)
C0NF12405A Ford Motor Co Ford Parts and Service Div Industrial Engine Opns (USA)
385411 R91 PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
Related Parts
7520-00-142-9352INTERCHANGEABLE
DISPENSER,PRESSURE SENSITIVE ADH
7000031087
5365-00-168-3225INTERCHANGEABLE
RING,LIFTING
751-003022
5935-00-280-2219INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
1JC2189-22
6670-00-280-2396INTERCHANGEABLE
BALANCE,ANALYTICAL
SECURA224-1S
4520-00-378-9684INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
H10
6240-00-505-6099INTERCHANGEABLE
LAMP,CONCENTRATED ARC
XL678/C10
5935-00-765-1238INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
H10
5935-00-924-4424INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
900285-0025-000
4940-00-994-1803INTERCHANGEABLE
LEAK DETECTOR,REFRIGERANT GAS
420-805AAA3
5340-00-997-4448INTERCHANGEABLE
CRANK,HAND
B286
5330-01-027-6327INTERCHANGEABLE
GASKET
H-10
5935-01-060-4944INTERCHANGEABLE
SHELL,ELECTRICAL CONNECTOR
H10

Frequently Asked Questions

What is NSN 2920-00-050-1034?

NSN 2920-00-050-1034 is a Spark Plug, manufactured by Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-00-050-1034?

NSN 2920-00-050-1034 has 3 cross-referenced part numbers: H10 (Champion Aerospace Llc), C0NF12405A (Ford Motor Co Ford Parts and Service Div Industrial Engine Opns), 385411 R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/).

What NSN replaces 2920-00-050-1034?

There are 12 known substitutes for 2920-00-050-1034: 7520-00-142-9352, 5365-00-168-3225, 5935-00-280-2219 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 385411 R91?

Key specifications for 385411 R91: Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4); Width Across Flats: 0.812 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 2 TYPE AND B CLASS; Reach Length: 0.438 INCHES NOMINAL IN. 7 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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