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250398 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The SPARK PLUG is a the manufacturer industrial component. Key specifications include body_style: UNSHIELDED, THREADED POST, GASKET SEAT, reach_length: 0.750 INCHES NOMINAL IN, usage_design: ENGINE OTHER THAN AIRCRAFT, electrode_style: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4), width_across_flats: 0.813 INCHES NOMINAL IN, seat_major_diameter: 0.790 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-01-063-5930, 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
250398
NSN: 2920-01-063-5930
FSC: 2920
CAGE: A3593 — A.R.I.S. APPLICAZIONI RIELABORAZIONI IMPIANTI SPECIALI SRL (ITA)
SPECIFICATIONS
body_styleUNSHIELDED, THREADED POST, GASKET SEAT
reach_length0.750 INCHES NOMINAL IN
usage_designENGINE OTHER THAN AIRCRAFT
electrode_styleSINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
width_across_flats0.813 INCHES NOMINAL IN
seat_major_diameter0.790 INCHES NOMINAL IN
height_above_mounting_surface2.150 INCHES NOMINAL IN
NSN2920-01-063-5930
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPARK PLUG TITLE COMPONENT PN 250398 MFR SPARK PLUG
KEY FEATURES
•
HEIGHT ABOVE MOUNTING SURFACE: 2.150 INCHES NOMINAL IN
•
SEAT MAJOR DIAMETER: 0.790 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.813 INCHES NOMINAL IN
•
USAGE DESIGN: ENGINE OTHER THAN AIRCRAFT
•
ELECTRODE STYLE: SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
•
REACH LENGTH: 0.750 INCHES NOMINAL IN
•
BODY STYLE: UNSHIELDED, THREADED POST, GASKET SEAT
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT ABOVE MOUNTING SURFACE2.150 INCHES NOMINAL IN
SEAT MAJOR DIAMETER0.790 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.813 INCHES NOMINAL IN
USAGE DESIGNENGINE OTHER THAN AIRCRAFT
ELECTRODE STYLESINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
REACH LENGTH0.750 INCHES NOMINAL IN
BODY STYLEUNSHIELDED, THREADED POST, GASKET SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
WS506Interchangeable
interchangeable cross-reference
interchangeable
RN5CInterchangeable
interchangeable cross-reference
interchangeable
N8Interchangeable
interchangeable cross-reference
interchangeable
44XLInterchangeable
interchangeable cross-reference
interchangeable
MT10RInterchangeable
interchangeable cross-reference
interchangeable
2098377Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 250398?
250398 is a SPARK PLUG.
What parts can replace 250398?
There are 12 known substitutes for 250398: WS506, RN5C, N8 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 250398?
250398 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2920-01-063-5930. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026