PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R42CXLSpark Plug

General Motors Llc Dba General Motors · NSN 2920-01-142-3174 · FSC 2920 · No Item Name Available
Verified by PartsTable
NSN 2920-01-142-3174 — this item is cataloged by the U.S. Government under National Stock Number 2920-01-142-3174. Primary manufacturer part number: R42CXL.
Features
  • Spark Plug — FSC 2920
  • Width Across Flats: 0.812 INCHES NOMINAL IN
  • Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
  • Reach Length: 0.750 INCHES NOMINAL IN
  • 8 verified cross-references
  • Primary manufacturer: General Motors Llc Dba General Motors
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Spark Plug, cataloged under National Stock Number 2920-01-142-3174, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is General Motors Llc Dba General Motors. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN2920-01-142-3174
Primary Part NumberR42CXL
Item NameSpark Plug
FSC / FSG2920 / 29 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors
StatusACTIVE
Width Across Flats0.812 INCHES NOMINAL IN
Electrode StyleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
Reach Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-027-63592210214 INTERCHANGEABLE
Transformer,pulse
L3harris Technologies, Inc.
5310-00-151-8837 INTERCHANGEABLE
Nut
4330-00-191-035951579 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5315-00-276-37031579 INTERCHANGEABLE
Pin,straight,headed
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5310-00-297-58851579 INTERCHANGEABLE
Washer,flat
R.w. Fernstrum & Company
5865-00-523-6673226800-000 INTERCHANGEABLE
Filter,optical
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5905-00-567-482410050532 INTERCHANGEABLE
Resistor,thermal
Us Army Aviation and Missile Command
6240-00-763-34501893 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5815-01-020-8892 INTERCHANGEABLE
Eccentric Decelerat
5210-01-076-61951579 INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
Cross-Reference Index
Part NumberManufacturer
R42CXL General Motors Llc Dba General Motors (USA)
PE-2806 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
RN3C Champion Aviation Inc Automotive Div (USA)
1579 Champion Aviation Inc Automotive Div (USA)
RN-3 Champion Spark Plug Co Devilbiss Co Div (USA)
QN3C Champion Spark Plug Co Devilbiss Co Div (USA)
RN3C Champion Aerospace Llc (USA)
R42CXL General Motors Llc Dba General Motors Llc (USA)
Related Parts
5950-00-027-6359INTERCHANGEABLE
TRANSFORMER,PULSE
2210214
5310-00-151-8837INTERCHANGEABLE
NUT
4330-00-191-0359INTERCHANGEABLE
FILTER ELEMENT,FLUID
51579
5315-00-276-3703INTERCHANGEABLE
PIN,STRAIGHT,HEADED
1579
5310-00-297-5885INTERCHANGEABLE
WASHER,FLAT
1579
5865-00-523-6673INTERCHANGEABLE
FILTER,OPTICAL
226800-000
5905-00-567-4824INTERCHANGEABLE
RESISTOR,THERMAL
10050532
6240-00-763-3450INTERCHANGEABLE
LAMP,INCANDESCENT
1893
5815-01-020-8892INTERCHANGEABLE
ECCENTRIC DECELERAT
5210-01-076-6195INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
1579
2530-01-081-9877INTERCHANGEABLE
SHIELD,DUST
157-9
5310-01-146-1663INTERCHANGEABLE
NUT

Frequently Asked Questions

What is NSN 2920-01-142-3174?

NSN 2920-01-142-3174 is a Spark Plug, manufactured by General Motors Llc Dba General Motors, classified under FSC 2920 (No Item Name Available). Status: active.

What are the part numbers for NSN 2920-01-142-3174?

NSN 2920-01-142-3174 has 8 cross-referenced part numbers: R42CXL (General Motors Llc Dba General Motors), PE-2806 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), RN3C (Champion Aviation Inc Automotive Div), 1579 (Champion Aviation Inc Automotive Div), RN-3 (Champion Spark Plug Co Devilbiss Co Div) and 3 more.

What NSN replaces 2920-01-142-3174?

There are 12 known substitutes for 2920-01-142-3174: 5950-00-027-6359, 5310-00-151-8837, 4330-00-191-0359 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R42CXL?

Key specifications for R42CXL: Width Across Flats: 0.812 INCHES NOMINAL IN; Electrode Style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4); Reach Length: 0.750 INCHES NOMINAL IN. 3 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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