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18DC0M — SPARK PLUG

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

18DC0M: SPARK PLUG.

The SPARK PLUG is a the manufacturer industrial component. Key specifications include body_style: UNSHIELDED, SOLID POST, GASKET SEAT, reach_length: 0.500 INCHES NOMINAL IN, usage_design: ENGINE OTHER THAN AIRCRAFT, electrode_style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4), pressure_rating: 152.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS, width_across_flats: 0.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2920-00-554-6653, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
18DC0M
NSN: 2920-00-554-6653
FSC: 2920 — Engine Electrical System Components, Nonaircraft
CAGE: 70673 — SL AUBURN INC SUB OF SL INDUSTRIES INC (USA)
SPECIFICATIONS
body_styleUNSHIELDED, SOLID POST, GASKET SEAT
reach_length0.500 INCHES NOMINAL IN
usage_designENGINE OTHER THAN AIRCRAFT
electrode_styleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
pressure_rating152.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
width_across_flats0.875 INCHES NOMINAL IN
seat_major_diameter0.868 INCHES NOMINAL IN
NSN2920-00-554-6653
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPARK PLUG TITLE COMPONENT PN 18DC0M MFR SPARK PLUG
KEY FEATURES
•
PRESSURE RATING: 152.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
USAGE DESIGN: ENGINE OTHER THAN AIRCRAFT
•
ELECTRODE STYLE: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
•
BODY STYLE: UNSHIELDED, SOLID POST, GASKET SEAT
•
REACH LENGTH: 0.500 INCHES NOMINAL IN
•
SEAT MAJOR DIAMETER: 0.868 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PRESSURE RATING152.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
USAGE DESIGNENGINE OTHER THAN AIRCRAFT
ELECTRODE STYLESINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
BODY STYLEUNSHIELDED, SOLID POST, GASKET SEAT
REACH LENGTH0.500 INCHES NOMINAL IN
SEAT MAJOR DIAMETER0.868 INCHES NOMINAL IN
OTHER ITEMS IN FSC 2920 — Engine Electrical System Components, Nonaircraft
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2920-00-003-5173 2920-00-005-1596 2920-00-035-6718 2920-00-158-2674 2920-00-255-4938 2920-00-424-3259
SUBSTITUTES & CROSS-REFERENCES 1
7218203Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18DC0M?
18DC0M is a SPARK PLUG.
What parts can replace 18DC0M?
There is 1 known substitute for 18DC0M: 7218203. Substitute compatibility should be verified for your specific system.
What is the NSN for 18DC0M?
18DC0M is cataloged in the U.S. Government catalog under NSN 2920-00-554-6653. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.