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PartsTable / COMPONENT / A33-30578
A33-30578 ✓ 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: UNSHIELDED, THREADED POST, GASKET SEAT, reach_length: 0.375 INCHES NOMINAL IN, usage_design: ENGINE OTHER THAN AIRCRAFT, electrode_style: SINGLE "J" TYPE GROUND ELECTRODE (SEE ALSO STYLE 1 & 17), width_across_flats: 0.812 INCHES NOMINAL IN, seat_major_diameter: 0.781 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-00-930-0684, 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
A33-30578
NSN: 2920-00-930-0684
FSC: 2920
CAGE: 88907 — BRUNSWICK CORP DBA MERCURY MARINE DIV MERCURY MARINE (USA)
SPECIFICATIONS
body_styleUNSHIELDED, THREADED POST, GASKET SEAT
reach_length0.375 INCHES NOMINAL IN
usage_designENGINE OTHER THAN AIRCRAFT
electrode_styleSINGLE "J" TYPE GROUND ELECTRODE (SEE ALSO STYLE 1 & 17)
width_across_flats0.812 INCHES NOMINAL IN
seat_major_diameter0.781 INCHES NOMINAL IN
height_above_mounting_surface2.250 INCHES NOMINAL IN
NSN2920-00-930-0684
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPARK PLUG TITLE COMPONENT PN A33-30578 MFR SPARK PLUG
KEY FEATURES
•
HEIGHT ABOVE MOUNTING SURFACE: 2.250 INCHES NOMINAL IN
•
SEAT MAJOR DIAMETER: 0.781 INCHES NOMINAL IN
•
BODY STYLE: UNSHIELDED, THREADED POST, GASKET SEAT
•
REACH LENGTH: 0.375 INCHES NOMINAL IN
•
USAGE DESIGN: ENGINE OTHER THAN AIRCRAFT
•
ELECTRODE STYLE: SINGLE "J" TYPE GROUND ELECTRODE (SEE ALSO STYLE 1 & 17)
•
WIDTH ACROSS FLATS: 0.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT ABOVE MOUNTING SURFACE2.250 INCHES NOMINAL IN
SEAT MAJOR DIAMETER0.781 INCHES NOMINAL IN
BODY STYLEUNSHIELDED, THREADED POST, GASKET SEAT
REACH LENGTH0.375 INCHES NOMINAL IN
USAGE DESIGNENGINE OTHER THAN AIRCRAFT
ELECTRODE STYLESINGLE "J" TYPE GROUND ELECTRODE (SEE ALSO STYLE 1 & 17)
WIDTH ACROSS FLATS0.812 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
96-380035-5Interchangeable
interchangeable cross-reference
interchangeable
431-9Interchangeable
IBM 35.16GB 10k rpm Disk Unit
interchangeable
378320Interchangeable
interchangeable cross-reference
interchangeable
11022226Interchangeable
interchangeable cross-reference
interchangeable
33 813413Interchangeable
Same NIIN cross-reference
interchangeable
386939Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A33-30578?
A33-30578 is a SPARK PLUG.
What parts can replace A33-30578?
There are 11 known substitutes for A33-30578: 96-380035-5, 431-9, 378320 and 8 more. Substitute compatibility should be verified for your specific system.
Is A33-30578 still available?
A33-30578 is currently cancelled.
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Last verified: July 2026