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553086 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SPARK PLUG is a the manufacturer industrial component. Key specifications include body_style: ELECTRICALLY SHIELDED, PARTIAL INSULATOR, 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: 230.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS, width_across_flats: 0.802 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-00-571-6731, 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
553086
NSN: 2920-00-571-6731
FSC: 2920
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
body_styleELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT
reach_length0.500 INCHES NOMINAL IN
usage_designENGINE OTHER THAN AIRCRAFT
electrode_styleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
pressure_rating230.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
width_across_flats0.802 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN
seat_major_diameter0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
shield_thread_length0.375 INCHES NOMINAL IN
barrel_inside_diameter0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
dc_resistance_rating_in_ohms100.0 MINIMUM AND 1250.0 MAXIMUM
height_above_mounting_surface2.875 INCHES NOMINAL IN
top_to_shield_thread_distance0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
NSN2920-00-571-6731
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPARK PLUG TITLE COMPONENT PN 553086 MFR SPARK PLUG
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.802 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN
•
BODY STYLE: ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT
•
REACH LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 5/8-24 UNEF SHIELD
•
USAGE DESIGN: ENGINE OTHER THAN AIRCRAFT
•
DC RESISTANCE RATING IN OHMS: 100.0 MINIMUM AND 1250.0 MAXIMUM
•
PRESSURE RATING: 230.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
•
HEIGHT ABOVE MOUNTING SURFACE: 2.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.802 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN
BODY STYLEELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT
REACH LENGTH0.500 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR5/8-24 UNEF SHIELD
USAGE DESIGNENGINE OTHER THAN AIRCRAFT
DC RESISTANCE RATING IN OHMS100.0 MINIMUM AND 1250.0 MAXIMUM
PRESSURE RATING230.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS
HEIGHT ABOVE MOUNTING SURFACE2.875 INCHES NOMINAL IN
TOP TO SHIELD THREAD DISTANCE0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
SHIELD THREAD LENGTH0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2344Interchangeable
interchangeable cross-reference
interchangeable
7000C15EInterchangeable
interchangeable cross-reference
interchangeable
T8601330P95Interchangeable
interchangeable cross-reference
interchangeable
A181-28Interchangeable
interchangeable cross-reference
interchangeable
C31-10084-6Interchangeable
interchangeable cross-reference
interchangeable
DMN168-1LInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 553086?
553086 is a SPARK PLUG.
What parts can replace 553086?
There are 16 known substitutes for 553086: 2344, 7000C15E, T8601330P95 and 13 more. Substitute compatibility should be verified for your specific system.
Is 553086 still available?
553086 is currently cancelled.
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Last verified: July 2026